Getac 9270D Service Manual page 105

4.5 Serial ATA Interface Signals–Table 4
Name
SATA3GP /
GPIO37
SATA4GP /
GPIO16
SATA5GP /
GPIO49
SATALED#
SCLOCK/
GPIO22
SLOAD/GPIO38
SDATAOUT0/
GPIO39
SDATAOUT1/
GPIO48
Type
Serial ATA 3 General Purpose: Same function as SATA0GP,
except for SATA Port 3. If interlock switches are not required, this
I
pin can be configured as GPIO37. NOTE: This signal can also be
used as GPIO37.
Serial ATA 4 General Purpose: Same function as SATA0GP,
I
except for SATA Port 4.
Serial ATA 5 General Purpose: Same function as SATA0GP,
I
except for SATA Port 5.
Serial ATA LED: This signal is an open-drain output pin driven
during SATA command activity. It is to be connected to external
OD O circuitry that can provide the current to drive a platform LED. When
active, the LED is on. When tri-stated, the LED is off. An external
pull-up resistor to Vcc3_3 is required.
SGPIO Reference Clock: The SATA controller uses rising edges
of this clock to transmit serial data, and the target uses the falling
OD O
edge of this clock to latch data. If SGPIO interface is not used, this
signal can be used as a GPIO.
SGPIO Load: The controller drives a '1' at the rising edge of
SCLOCK to indicate either the start or end of a bit stream. A 4-bit
OD O vendor specific pattern will be transmitted right after the signal
assertion. If SGPIO interface is not used, this signal can be used as a
GPIO.
SGPIO Dataout: Driven by the controller to indicate the drive
OD O status in the following sequence: drive 0, 1, 2, 3, 4, 5, 0, 1, 2... If
SGPIO interface is not used, the signals can be used as GPIO.
Description