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Fat Pipe Switch Module: 10 GbE-1 GbE Fat Pipe Switch Module
10007175-02 KAT4000 User’s Manual
5-19
Note: Software must ensure that the switch is held in reset for the minimum amount of time as listed in the Ether-
net switch data sheet.
Module Status Register
The read-only Module Status register contains information relating to the module status,
such as power supply state, switch operational mode, and switch interrupt state.
Register 5-14: Module Status Register (STAT) at 0x05
R: Reserved
S3V3: 3.3V Power Supply Status
0 Power supply out of spec
1 Power supply within spec
S2V5: 2.5V Power Supply Status
0 Power supply out of spec
1 Power supply within spec
S1V2: 1.0V Power Supply Status
0 Power supply out of spec
1 Power supply within spec
Switch GPIO Register
The Switch GPIO register drives the GPIO signals on the PLX8111 PCIe to the PCI bridge.
Default is 0x00.
Register 5-15: Switch GPIO Register (GPIO) at 0x06
DIR3–DIR0: GPIO Direction
0 GPIOx bit reflects the state of the GPIO pin. The corresponding GPIO State bit becomes
read-only.
1 GPIOx bit drives the GPIO pin according to the state of the corresponding bit.
76543210
reserved S3V3 S2V5 S1V0 reserved
76543210
DIR3 DIR2 DIR1 DIR0
GPIO3 GPIO2 GPIO1 GPIO0