General Purpose Input/Output (Gpio); Table 38. Gem424* Controller Gpio Assignment - Intel SC5300BRP Technical Product Specification

Intel® Server Chassis SC5300 5U Kit TPS
JP1 P5V
GEM424 P5V
PCA9554 P5V
AT24C512 P5V
AT24C128 P5V
AT24C02 P5V
JP2 P5V
5.2.3.2 Temperature Sensor
The 6HDD SATA/SAS HSBP provides a National* LM75 or equivalent temperature sensor. The
host can query the LM75 at any time to read the temperature.
The temperature sensor has an I
5.2.3.3 Serial EEPROM
The 6HDD SATA/SAS HSBP provides an Atmel* 24C02 or equivalent serial EEPROM for
storing FRU information. The 24C02 provides 2048 bits of serial electrically erasable and
programmable read-only memory.
The serial EEPROM has an I
5.2.4

General Purpose Input/Output (GPIO)

The GEM424 controller supports GPIO pins that are customizable. The following table lists the
GPIO pins with their assigned functions.
GEM424 I/O Power
PIN Well
Type
NAME
GPIO0 O 3.3V
GPIO1 O 3.3V
GPIO2 O 3.3V
GPIO3 O 3.3V
GPIO4 O 3.3V
Revision 1.31
0.7VCC* 0.3VCC* 0.4V/3mA*
0.7VCC 0.3VCC
0.7VCC 0.3VCC
0.7VCC 0.3VCC
0.7VCC 0.3VCC
0.7VCC 0.3VCC
0.7VCC* 0.3VCC* 0.4V/3mA*
2
C address of 0x90h on the GEM424 controller Port 0.
2
C address of 0xA6h on the GEM424 controller Port 1.

Table 38. GEM424* Controller GPIO Assignment

Programming
Description
HDD0 Active LED HD0_ACT_LED
HDD1 Active LED HD1_ACT_LED
HDD2 Active LED HD2_ACT_LED
HDD3 Active LED HD3_ACT_LED
HDD4 Active LED HD4_ACT_LED
10uA*
0.4V/3mA 10uA
0.4/3mA 10uA
0.4V/2.1mA 3uA
0.4V/2.1mA 3uA
0.4V/2.1mA 3uA
10uA*
System Function Reset
State
Hard Disk Drive Bays
4/8P* * SDA1,SCL1
4PF GEM424 SDA2,SCL2
allot
10PF 40h SDA2,SCL2
8PF A2h SDA2,SCL2
8PF A0h SDA2,SCL2
8PF A6h SDA2,SCL2
4/8P* * SDA2,SCL2
Initial Connection
Value
Pull up 4.7K to
5V
Pull up 4.7K to
5V
Pull up 4.7K to
5V
Pull up 4.7K to
5V
Pull up 4.7K to
5V
65