Miscellaneous Signals; Manufacturing Signals - DFI AL701 User Manual

Miscellaneous Signals

Signal Pin# Pin Type
WDTRIG#_C 70 I CMOS
WDOUT_C 72 O CMOS
I2C_SCL1 66 I/O OD CMOS3.3V/3.3V
I2C_SDA1 68 I/O OD CMOS3.3V/3.3V
SMBCK_BTB 60 I/O OD CMOS3.3V Suspend/3.3V
SMBDAT_BTB 62 I/O OD CMOS3.3V Suspend/3.3V
SMB_ALERT-_EC_BTB 64 I/O OD CMOS3.3V Suspend/3.3V
HDA_SPKR_3V3 194 O CMOS
BIOS_DIS0- 41 I CMOS
RSVD 52,53,54,55
GP_1-Wire_Bus 124 I/O CMOS
GPIO0_C 19 O CMOS
SDIO_LED 44 O CMOS

Manufacturing Signals

Signal Pin# Pin Type
EC_CTS0# / JTAG_TCK 207 N.A
EC_SOUT0 / JTAG_TDO 209 N.A
User's Manual | AL701
Pwr Rail /Tolerance AL701
3.3V/3.3V PU 10K to 3.3V
3.3V/3.3V PU 10K to 3.3V
PU 2.2K to 3.3V
PU 2.2K to 3.3V
PU 2.2K to 3.3V Suspend
PU 2.2K to 3.3V Suspend
PU 10K to 3.3V Suspend
3.3V/3.3V
3.3V/3.3V PU 10K to 3.3V
NC
3.3V/3.3V
CMOS 3.3V
3.3V Suspend
Pwr Rail /Tolerance AL701
N.A
N.A
Carrier Board
Carrier Board
HARDWARE INSTALLATION
Description
Watchdog trigger signal. This signal restarts the watchdog timer of the
Qseven module on the falling edge of a low active pulse.
Watchdog event indicator. High active output used for signaling a
missing watchdog trigger. Will be deasserted by software, system reset
or a system power down.
General Purpose I²C bus #0 clock line.
General Purpose I²C bus #0 data line.
Clock line of System Management Bus.
Multiplexed with General Purpose I²C bus #1 clock line.
Data line of System Management Bus.
Multiplexed with General Purpose I²C bus #1 data line.
System Management Bus Alert input. This signal may be driven low by
SMB devices to signal an event on the SM Bus.
Primary functionality is output for audio enunciator, the"speaker" in PC
AT systems. When not in use for this primary purpose it can be used as
General Purpose PWM Output.
Module BIOS disable input signal. Pull low to disable module's on-board
BIOS.
Allows off-module BIOS implementations. This signal can also be used
to disable standard boot firmware flash device and enable an alternative
boot firmware source, for example a boot loader.
Do not connect
General Purpose 1-Wire bus interface. Can be used for consumer
electronics control bus (CEC) of HDMI
General Purpose Output 0
Use a GPIO programmed to indicate the state of the hostcontrol1.
hostctrl1_ledcontrol register bit.
Description
This pin is reserved for manufacturing and debugging purposes.
May be used as JTAG_TCK signal for boundary scan purposes during
production or as a vendor specific control signal. When used as a vendor
specific control signal the multiplexer must be controlled by the MFG_
NC4 signal.
Or UART_CTS
This pin is reserved for manufacturing and debugging purposes.
May be used as JTAG_TDO signal for boundary scan purposes during
production. May also be used, via a multiplexer, as a UART_TX signal to
connect a simple UART for firmware and boot loader implementations. In
this case the multiplexer must be controlled by the MFG_NC4 signal.
Chapter 2
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