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Design Name always "TE Series Name" + optional CPLD Name + "CPLD"

Date	Version	Changes	Author
2023-02-07	2.2	added column 'Firmware release' in 'Document Change History' table changed template revision from list to table	ma
-	2.1	Fix problem with pdf export and side scroll bar	-
-	2.0	add fix table of content add table size as macro removed page initial creator	-

Overview

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CPLD Device with designator U46: 10M08SAU169

Feature Summary

JTAG_UART
Power management
Reset

Firmware Revision and supported PCB Revision

See Document Change History

Product Specification

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Port Description

Name / opt. VHD Name	Direction	Pin	I/O Bank	Pullup/Down	I/O Standard	Current Strength	Description
JTAGEN	in	E5		--	3.3V		fixed to 3.3V
TCK_MAX10	in	G2		--	2.5V (default)	12mA (default)	JTAG
TMS_MAX10	in	G1		--	2.5V (default)	12mA (default)	JTAG
TDO_MAX10	out	F6		--	2.5V (default)	12mA (default)	JTAG
TDI_MAX10	in	F5		--	2.5V (default)	12mA (default)	JTAG

PG_1V2_PL_DDR	in	H5	2	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS82130 (U24) open drain output, pull-up resistor needed PG: PG_+1.2V_PL_DDR EN: EN_+1.2V_PL_DDR VOUT: +1.2V_PL_DDR
PG_VCCINT	in	N3	2	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from LTM4700 (U20) open drain output, pull-up resistor needed PGOOD0/1: PG_VCCINT RUN0/1: EN_VCCINT
LTM_FAULT	in	N2	2		3.3V LVCMOS	2mA (default)	FAULT signal from LTM4700 (U20) open drain input and output, pull-up resistor needed FAULT0/1: LTM_FAULT
M_SDA	inout	M3	2	--	3.3V LVCMOS	2mA (default)	connected to level shifter TXS0102 (U12) connected to EEPROM 24AA025 (U14) connected to SLS32AIA (U16) connected to ATECC608B-MAH (U19) connected to LTM4700 (U20)
EN_SOM	in	K1	2	weak pull-up	3.3V LVCMOS	2mA (default)	EN_SOM input_signal in TEBT0865: SC_EXT4 signal connected to J2B (D54)
SC_EXT_3	in	L2	2	--	3.3V LVCMOS	2mA (default)	SC_EXT3 input signal connected to J2B (D53) in TEBT0865: Overcurrent Signal from TPS2051 (U9) not used in CPLD
EN_VTT_PL_DDR	out	J2	2	--	3.3V LVTTL	8mA (default)	Enable signal for TPS51206 (U26) S3/S5: EN_VTT_DDR_PL VTT: VTT_DDR_PL VTTREF: VREFA_DDR_PL
EN_2V5_PL_DDR	out	J1	2	--	3.3V LVTTL	8mA (default)	Enable signal for TPS82130 (U22) EN: EN_+2.5V_PL_DR VOUT: +2.5V_PL_DDR PG: PG_+2.5V_PL_DR
EN_1V2_PL_DDR	out	H4	2	--	3.3V LVTTL	8mA (default)	Enable signal for TPS82130 (U24) EN: EN_+1.2V_PL_DR VOUT: +1.2V_PL_DDR PG: PG_+1.2V_PL_DR
EN_1V8_PS_AUX	out	M2	2	--	3.3V LVTTL	8mA (default)	Enable signal for TPS72018 (U43) EN: EN_+1.8V_AUX_PS VOUT: +1.8V_AUX_PS
PG_SOM	out	M1	2	--	3.3V LVTTL	8mA (default)	PG_SOM output signal connected to J2B (D51) in TEBT0865: enable signal for TPS82130 (U2) → Carrier_+1.8V enable signal for TPS54240 (U14) → Carrier_+1.8V
SC_EXT_2	out	L3	2	--	3.3V LVCMOS	2mA (default)	SC_EXT2 output signal connected to J2B (D52) in TEBT0865: enable signal for USB TPS82130 (U12) Deactivated on delivery Can be activated via I2C (see reference design)
MR	inout	K2	2	weak pull-up	3.3V LVCMOS	2mA (default)	Manual Reset will be released after power group 6 is enabled

SMB_ALERTn	in	L4	3	--	3.3V LVCMOS	2mA (default)	nAlert signal from LTM4700 (U20) not used in CPLD
PG_2V5_PL_DDR	in	L5	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS82130 (U22) open drain output, pull-up resistor needed PG: PG_+2.5V_PL_DR EN: EN_+2.5V_PL_DDR VOUT: +2.5V_PL_DDR
M_SCL	inout	M4	3	--	3.3V LVCMOS	2mA (default)	connected to level shifter TXS0102 (U12) connected to EEPROM 24AA025 (U14) connected to SLS32AIA (U16) connected to ATECC608B-MAH (U19) connected to LTM4700 (U20)
nRST_SYS	out	K5	3		3.3V LVCMOS	2mA (default)	RST_SYSn System reset output signal, resets eMMC, ETH-Phy and USB-Phy will be released after power group 6 is enabled
PG_1V2_PS_DDR	in	M7	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS82130 (U25) open drain output, pull-up resistor needed PG: PG_+1.2V_PS_DDR EN: EN_+1.2V_PS_DDR VOUT: +1.2V_PS_DDR
PG_0V9_GTH_AVCC	in	N6	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from LT8642 (U35) PG: PG_+0.9V_GTH_AVCC EN/UV: EN_+0.9V_GTH_AVCC SW: +0.9V_GTH_AVCC open drain output
PG_0V9_GTY_AVCC	in	N8	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from LT8642 (U38) PG: PG_+0.9V_GTY_AVCC EN/UV: EN_+0.9V_GTY_AVCC SW: +0.9V_GTY_AVCC open drain output
PG_1V8_PS_GTR_AVTT	in	M9	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS82130 (U47) open drain output, pull-up resistor needed PG: PG_+1.8V_GTR_AVTT_PS EN: EN_+1.8V_GTR_AVTT_PS VOUT: +1.8V_GTR_AVTT_PS
PG_1V8	in	M8	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS82130 (U41) open drain output, pull-up resistor needed PG: PG_+1.8V EN: EN_+1.8V VOUT: +1.8V
PG_1V2_GTY_AVTT	in	N9	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from LT8642 (U39) PG: PG_+1.2V_GTY_AVTT EN/UV: EN_+1.2V_GTY_AVTT SW: +1.2V_GTY_AVTT open drain output
M_INT	in	L11	3	--	3.3V LVCMOS	2mA (default)	not used in CPLD
PG_0V85_PS_GTR_AVCC	in	K8	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS74801 (U48) open drain output, pull-up resistor needed PG: PG_+0.85V_PS_GTR_AVCC EN: EN_+0.85V_PS_GTR_AVCC OUT: +0.85V_PS_GTR_AVCC
PG_2V3	in	N12	3	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS82130 (U45) open drain output, pull-up resistor needed PG: PG_+2.3V EN: EN_+2.3V VOUT: +2.3V
EN_LTM_RUNP	out	M5	3	--	3.3V LVTTL	8mA (default)	RUNP signal from LTM4700 (U20) enables board bias circuit to supply IC and to drive the MOSFET when the SVin is higher than 7V. Needs to be '1' ; Tie to ground to disable the bias circuit when Vin is less than 5,75V
EN_0V9_GTH_AVCC	out	N5	3	--	3.3V LVTTL	8mA (default)	Enable signal for LT8642 (U35) EN/UV: EN_+0.9V_GTH_AVCC PG: PG_+0.9V_GTH_AVCC SW: +0.9V_GTH_AVCC
EN_0V9_GTY_AVCC	out	N4	3	--	3.3V LVTTL	8mA (default)	Enable signal for LT8642 (U38) EN/UV: EN_+0.9V_GTY_AVCC PG: PG_+0.9V_GTY_AVCC SW: +0.9V_GTY_AVCC
EN_3V3_SW	out	N7	3	--	3.3V LVTTL	8mA (default)	enable signal for SIP32408 (U52) EN: EN_+3.3V_SW
EN_1V2_PS_PLL	out	J6	3	--	3.3V LVTTL	8mA (default)	Enable signal for TPS72012 (U42) EN: EN_+1.2V_PLL_PS OUT: +1.2V_PLL_PS
EN_2V5_PS_DDR	out	M13	3	--	3.3V LVTTL	8mA (default)	Enable signal for TPS82130 (U23) EN: EN_+2.5V_PS_DDR PG: PG_+2.5V_PS_DDR VOUT: +2.5V_PS_DDR
EN_1V2_GTY_AVTT	out	N10	3	--	3.3V LVTTL	8mA (default)	Enable signal for LT8642 (U39) EN/UV: EN_+1.2V_GTY_AVTT PG: PG_+1.2V_GTY_AVTT SW: +1.2V_GTY_AVTT
EN_1V8_VCC_ADC	out	M11	3	--	3.3V LVTTL	8mA (default)	Enable signal for TPS72018 (U49) EN: EN_+1.8V_VCCADC VOUT: +1.8V_VCCADC
EN_VTT_PS_DDR	out	J8	3	--	3.3V LVTTL	8mA (default)	Enable signal for TPS51206 (U27) S3/S5: EN_VTT_DDR_PS VTT: VTT_DDR_PS VTTREF: VREFA_DDR_PS
EN_1V8	out	L10	3	--	3.3V LVTTL	8mA (default)	Enable signal for TPS82130 (U41) EN: EN_+1.8V PG: PG_+1.8V VOUT: +1.8V
EN_1V8_GTY_AUX	out	M10	3	--	3.3V LVTTL	8mA (default)	Enable signal for TPS72018 (U40) EN: EN_+1.8V_GTY_AUX OUT: +1.8V_GTY_AUX

PG_3V3_SW	in	J9	5	--	3.3V LVCMOS	2mA (default)	output voltage from secondary power SIP32408 (U52) OUT: +3.3V_SW EN: EN_+3.3V_SW
PG_1V2_GTH_AVTT	in	H9	5	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from LT8642 (U36) PG: PG_+1.2V_GTH_AVTT EN/UV: EN_+1.2V_GTH_AVTT SW: +1.2V_GTH_AVTT open drain output
PG_1V8_AUX	in	G12	5	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS82130 (U50) open drain output PG: PG_+1.8V_AUX EN: EN_+1.8V_AUX VOUT: +1.8V_AUX
PG_2V5_PS_DDR	in	L13	5	weak pull-up	3.3V LVCMOS	2mA (default)	PowerGood output signal from TPS82130 (U23) open drain output PG: PG_+2.5V_PS_DDR EN: EN_+2.5V_PS_DDR VOUT: +2.5V_PS_DDR
EN_1V8_PS_GTR_AVTT	out	K10	5	--	3.3V LVTTL	8mA (default)	enable signal for TPS82130 (U47) EN: EN_+1.8V_GTR_AVTT_PS PG: PG_+1.8V_GTR_AVTT_PS VOUT: +1.8V_GTR_AVTT_PS
EN_1V8_GTH_AUX	out	K11	5	--	3.3V LVTTL	8mA (default)	enable signal for TPS72018 (U37) EN: EN_+1.8V_GTH_AUX OUT: +1.8V_GTH_AUX
EN_1V8_AUX	out	K12	5	--	3.3V LVTTL	8mA (default)	enable signal for TPS82130 (U50) EN: EN_+1.8V_AUX PG: PG_+1.8V_AUX VOUT: +1.8V_AUX
EN_1V2_GTH_AVTT	out	J12	5	--	3.3V LVTTL	8mA (default)	enable signal for LT8642 (U36) EN/UV: EN_+1.2V_GTH_AVTT PG: PG_+1.2V_GTH_AVTT SW: +1.2V_GTH_AVTT
EN_1V2_PS_DDR	out	J13	5	--	3.3V LVTTL	8mA (default)	enable signal for TPS82130 (U25) EN: EN_+1.2V_PS_DDR PG: PG_+1.2V_PS_DDR VOUT: +1.2V_PS_DDR
EN_0V85_PS_GTR_AVCC	out	H13	5	--	3.3V LVTTL	8mA (default)	enable signal for TPS74801 (U48) EN: EN_+0.85V_PS_GTR_AVCC PG: PG_+0.85V_PS_GTR_AVCC OUT: +0.85V_PS_GTR_AVCC
EN_VCCINT	inout	H8	5	weak pull-up	3.3V LVCMOS	2mA (default)	enable signal for LTM4700 (U20) RUN0/1: EN_VCCINT PGOOD0/1: PG_VCCINT
EN_2V3	out	G13	5	--	3.3V LVTTL	8mA (default)	enable signal for TPS82130 (U45) EN: EN_+2.3V PG: PG_+2.3V VOUT: +2.3V

Functional Description

JTAG

JTAG access to Intel MAX 10 is available through B2B connector J2.

JTAG Signal	B2B Connector
JTAGEN	Pulled Up
TCK_MAX10	J2B- D56
TDI_MAX10	J2B- D59
TDO_MAX10	J2B- D58
TMS_MAX10	J2B- D57

Power

All power regulators are controlled by the power sequencer core. It enables and discharges the power regulators and monitors the power good signals. As the power good inputs of the power sequencer are very sensitive, all power good inputs were debounced.

The power-up sequence corresponds to AMD's recommendations and is shown in the table below:

Power Group	Power enable signal (CPLD output signal)	Power good signal (CPLD input signal)	Notes
0	--	EN_SOM
1	EN_VCCINT	PG_VCCINT	--
	EN_2V3	PG_2V3	--
	EN_3V3_SW	PG_3V3_SW	+3.3V_SW output signal from U52
2	EN_1V8	PG_1V8	--
	EN_1V8_AUX	PG_1V8_AUX	--
	EN_1V8_PS_AUX	--	--
	EN_1V2_PS_PLL	--	--
	EN_0V9_GTH_AVCC	PG_0V9_GTH_AVCC	--
	EN_0V9_GTY_AVCC	PG_0V9_GTY_AVCC	--
	EN_1V8_VCC_ADC	--	--
3	EN_1V2_PS_DDR	PG_1V2_PS_DDR	--
	EN_1V2_PL_DDR	PG_1V2_PL_DDR	--
	EN_2V5_PL_DDR	PG_2V5_PL_DDR	--
	EN_2V5_PS_DDR	PG_2V5_PS_DDR	--
	EN_1V2_GTH_AVTT	PG_1V2_GTH_AVTT	--
	EN_1V2_GTY_AVTT	PG_1V2_GTY_AVTT	--
4	EN_VTT_PS_DDR	--	--
	EN_0V85_PS_GTR_AVCC	PG_0V85_PS_GTR_AVCC	--
	EN_VTT_PL_DDR	--	--
	EN_1V8_GTH_AUX	--	--
	EN_1V8_GTY_AUX	--	--
5	EN_1V8_PS_GTR_AVTT	PG_1V8_PS_GTR_AVTT	--
6	PG_SOM	--	--

JTAG UART

As the power sequencer monitors all voltages and there is no visual feedback in the event of an error, the JTAG UART was implemented.

The command "nios2-terminal.exe" in the NIOS II command shell is used to output the CPLD Firmware and PCB revision. In case of power problems the power enable and power good signals will be displayed additionally.

Expand

title	example normal operation

Expand

title	example power enable and power good signals

I2C interface

CPLD firmware consists of an I2C Slave to Avalon-MM Master Bridge Intel FPGA IP . This subsystem provides i2c protocol interface to 32-bit (4 x 8-bit) (GPIO_input[31:0]) registers for reading from CPLD and (4 x 8-bit) (GPIO_output[31:0]) registers for writing in CPLD as general purpose parallel input and output (I/Os). The written and read data is communicated from/to FPGA via i2c bus interface protocol. The address of this block in the firmware is 0x20. In this case related i2c bus is bus 1.

Index	Byte	Register Name	Read/Write	Description	Default
0x0	[7:0]	SC_REVISION	R	CPLD Firmware Revision	0x3
0x1	[7:0]	PCB_REVISION	R	PCB Revision	0x2
0x6	[7:0]	pwr_en	R	Status of Power Groups Bit 0: Power Group 0 Enable Power Sequencer Bit 1: Power Group 1 EN_VCCINT EN_2V3 EN_3V3_SW Bit 2: Power Group 2 EN_1V8 EN_1V8_AUX EN_1V8_PS_AUX EN_1V2_PS_PLL EN_0V9_GTH_AVCC EN_0V9_GTY_AVCC EN_1V8_VCC_ADC Bit 3: Power Group 3 Bit 4: Power Group 4 Bit 5: Power Group 5 Bit 6: Power Group 6 Bit 7: not used	0x7F
0x8	[7:0]	power_good_in[7:0]	R	Status of Power Good Signals	0xFF
EN_1V2_PS_DDR EN_1V2_PL_DDR EN_2V5_PL_DDR EN_2V5_PS_DDR EN_1V2_GTH_AVTT EN_1V2_GTY_AVTT Bit 4: Power Group 4 EN_VTT_PS_DDR EN_0V85_PS_GTR_AVCC EN_VTT_PL_DDR EN_1V8_GTH_AUX EN_1V8_GTY_AUX Bit 5: Power Group 5 EN_1V8_PS_GTR_AVTT Bit 6: Power Group 6 PG_SOM Bit 7: not used	0x7F
0x8	[7:0]	power_good_in[7:0]	R	Status of Power Good Signals Bit 0: EN_SOM Bit 1: PG_VCCINT Bit 2: PG_2V3 Bit 3: PG_3V3_SW Bit 4: PG_1V8 Bit 5: PG_1V8_AUX Bit 6: PG_0V9_GTH_AVCC Bit 7: PG_0V9_GTY_AVCC	0xFF
0x9	[7:0]	power_good_in[15:8]	R	Status of Power Good Signals Bit 0: PG_1V2_PS_DDR Bit 1: PG_1V2_PL_DDR Bit 2: PG_2V5_PL_DDR Bit 3: PG_2V5_PS_DDR Bit 4: PG_1V2_GTH_AVTT Bit 5: PG_1V2_GTY_AVTT Bit 6: PG_0V85_PS_GTR_AVCC Bit 7: PG_1V8_PS_GTR_AVTT	0x9	[7:0]	power_good_in[15:8]	R	Status of Power Good Signals	0xFF
0xA	[7:0]	seq_nfault	R	Status of Power Sequencer (Active Low)	0x1
0xE	[7:0]	pwr_usb_ena	R/W	Enables/Disables output signal 'SC_EXT_2' Is used for USB enable voltage in TEBT0865	0x0 (0x1 in Reference Design)

Access to CPLD Registers

CPLD registers can be accessed via i2c interface. In the following table is shown how these registers can be read or written:

Some of these registers are using to show some information same as CPLD revision and boot mode while booting.

If CPLD firmware version is REV05, then boot mode, CPLD revision and some features of the board will be displayed in the linux console via FSBL code while booting. The format of these informations are shown in the following:

The CPLD revision, boot mode and other informations will be displayed while booting as shown:

Scroll Title

title-alignment	center
title	All information while booting

If PCB revision is REV04 and CPLD firmware version is older than REV05 (for example REV04) , then it will not be displayed these informations same as boot mode while booting and the following message will be displayed:

Appx. A: Change History

Revision Changes

REV02 to REV03
- changed top design from block design to text design
- added power sequencer
- added debouncing for power good signals
- added jtag_uart
- added i2c interface
REV01 to REV02
- added Pin L3 SC_EXT_2 as output and set to VCC to enable USB

Document Change History

To get content of older revision got to "Change History" of this page and select older document revision number.

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Date

Document Revision

CPLD Firmware Revision

Supported PCB Revision

Authors

Description

Page info

infoType	Modified date
dateFormat	yyyy-MM-dd
type	Flat

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	current-version
	current-version
prefix	v.

REV03

REV02

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	modified-user

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	modified-users

Appx. B: Legal Notices

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Key

Overview

Feature Summary

Firmware Revision and supported PCB Revision

Product Specification

Port Description

Functional Description

JTAG

Power

JTAG UART

I2C interface

Access to CPLD Registers

Appx. A: Change History

Revision Changes

Document Change History

Appx. B: Legal Notices

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