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SA70m01
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Table 32 Management Pins Signal Description
Signal Name
Pin
Description
I/O
PU/PD
Comment
VIN_PWR_BAD#
S150 Power bad indication from carrier board. Module and carrier power supplies (other
than module and carrier power supervisory circuits) will not be enabled while this
signal is held low by the carrier. Pulled up on module. Driven by OD part on carrier
I VDD_IN
PU 10k
CARRIER_PWR_
ON
S154 Carrier board circuits (apart from power management and power path circuits) should
not be powered up until the module asserts the CARRIER_PWR_ON signal.
O 1.8V
PD 100k
CARRIER_STBY#
S153 The module shall drive this signal low when the system is in a standby power state
O 1.8V
PD 100k
Connected to SUS_S3#
RESET_OUT#
P126 General purpose reset output to carrier board
O 1.8V
PD 100k
RESET_IN#
P127 Reset input from carrier board. Carrier drives low to force a module reset, floats the
line otherwise. Pulled up on module. Driven by OD part on carrier
I OD 3.3V
PU 10k
POWER_BTN#
P128 Power-button input from carrier board. Carrier to float the line in in-active state.
Active low, level sensitive. Should be de-bounced on the module. Pulled-up on
module. Driven by OD part on carrier
I OD 3.3V
PU 10k
SLEEP#
S149 Sleep indicator from carrier board. May be sourced from user Sleep button or carrier
logic. Carrier to float the line in in-active state. Active low, level sensitive. Should be
de-bounced on the module. Pulled-up on module. Driven by OD part on carrier
I OD 3.3V
PU 10k
LID#
S148 Lid open/close indication to module. Low indicates lid closure (which system may use
to initiate a sleep state). Carrier to float the line in in-active state. Active low, level
sensitive. Should be de-bounced on the module. Pulled-up on module. Driven by
OD part on carrier
I OD 3.3V
PU 10k
BATLOW#
S156 Battery low indication to module. Carrier to float the line in in-active state. Pulled up
on module. Driven by OD part on carrier
I OD 1.8V
PU 10k
I2C_PM_DAT
I2C_PM_CK
P122
P121
Power management I2C bus data and clock. On x86 systems these serve as SMB
data and clock
I/O OD 1.8V
PU 2k2
CHARGING#
S151 Held low by carrier during battery charging. Carrier to float the line when charge is
complete. Pulled-up on module. Driven by OD part on carrier
I OD 3.3V
PU 10k
3.3V
CHARGER_
PRSNT#
S152 Held low by carrier if DC input for battery charger is present. Pulled up on module.
Driven by OD part on carrier
I OD 3.3V
PU 10k
3.3V
TEST#
S157 Held low by carrier to invoke module vendor specific test function(s). Pulled up on
module. Driven by OD part on carrier
I OD 3.3V
PU 100k
3.3V
SMB_ALERT_1V8#
P1
SM Bus Alert# (interrupt) signal
I OD 1.8V
PU 2k2