Table 25 High Definition Audio Link Signal Descriptions; Table 26 Lpc Signal Descriptions; Table 27 Spi Bios Flash Interface Signal Descriptions - Congatec COM Express conga-TCV2 User Manual

Table 25 High Definition Audio Link Signal Descriptions
Signal Pin # Description
HDA_RST# A30 Reset output to codec, active low
HDA_SYNC A29 Sample-synchronization signal to the codec(s)
HDA_BITCLK A32 Serial data clock generated by the external codec(s)
HDA_SDOUT A33 Serial TDM data output to the codec
HDA_SDIN[2:0] B28-B30 Serial TDM data inputs from up to three codecs
Table 26 LPC Signal Descriptions
Signal Pin # Description
LPC_AD[0:3] B4-B7 LPC Mode: LPC multiplexed address, command and data bus
LPC_FRAME# B3 LPC Mode: LPC Frame indicates the start of a LPC cycle
LPC_CLK B10 LPC Mode: LPC clock output, 33MHz
LPC_DRQ0# B8 LPC Mode: LPC serial DMA request
LPC_DRQ1# B9 LPC Mode: LPC serial DMA request
LPC_SERIRQ A50 LPC Mode: LPC serial interrupt
SUS_STAT# B18 LPC Mode: Indicates imminent suspend operation. It is used to notify LPC devices that a low power
state will be entered soon. LPC devices may need to preserve memory or isolate outputs during the low
power state.
Note
The conga-TCV2 does not support ESPI mode.
Table 27 SPI BIOS Flash Interface Signal Descriptions
Signal Pin # Description
SPI_CS# B97 Chip select for Carrier Board SPI BIOS Flash
SPI_MISO A92 Data in to module from carrier board SPI BIOS flash
SPI_MOSI A95 Data out from module to carrier board SPI BIOS flash
SPI_CLK A94 Clock from module to carrier board SPI BIOS flash
SPI_POWER A91 Power source for carrier board SPI BIOS flash. SPI_POWER
shall be used to power SPI BIOS flash on the carrier only
BIOS_DIS0# A34 Selection strap to determine the BIOS boot device
BIOS_DIS1# B88 Selection strap to determine the BIOS boot device
Copyright © 2021 congatec GmbH
I/O PU/PD Comment
O 3.3 VSB
O 3.3 VSB
O 3.3 VSB
O 3.3 VSB
I 3.3 VSB PD 47 kΩ
I/O PU/PD Comment
O 3.3 VSB
I 3.3 VSB
O 3.3 VSB
O 3.3 VSB
P 3.3 VSB
I 3.3 VSB PU 10 kΩ 3.3 VSB Carrier shall pull to GND or left as no-connect.
I 3.3 VSB PU 10 kΩ 3.3 VSB Carrier shall pull to GND or left as no-connect.
TCV2m01
I/O PU/PD Comment
I/O 3.3 V PU 50 kΩ 3.3 V
O 3.3 V
O 3.3 V
I 3.3 V PU 10 kΩ 3.3 V
I 3.3 V Not connected
I/O 3.3 V PU 50 kΩ 3.3 V
O 3.3 V
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