Rainbow Electronics W90P710CDG - Manual (Page 402)

W90P710CD/W90P710CDG
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PT2CFG9
Name Type Name Type Name Type Name Type
PORT2_9 VD17 O KPROW1 O PHY_MDC O GPIO51 I/O
GPIO Port2 Direction Register (GPIO_DIR2)
REGISTER ADDRESS R/W DESCRIPTION RESET VALUE
GPIO_DIR2 0xFFF8_3024 R/W GPIO port2 in/out direction control
and pull-up enable register
0x0000_0000
31 30 29 28 27 26 25 24
RESERVED PUPEN2[9:8]
23 22 21 20 19 18 17 16
PUPEN2[7:0]
15 14 13 12 11 10 9 8
RESERVED OMDEN2[9:8]
7 6 5 4 3 2 1 0
OMDEN2[7:0]
BITS DESCRIPTION
[31:26] RESERVED -
[25:16] PUPEN2
GPIO51 ~ GPIO42 port pin internal pull-up resister enable
This is a 10-bit register, write corresponding bit “1” will enable
pull –up resister in the IO pin.
1 = enable
0 = disable
After power on, the registers are disabled.
[15:10] RESERVED
[9:0] OMDEN2
GPIO51 ~ GPIO42 output mode enable
1 = output mode
0 = input mode
NOTE: Output mode enable bits are valid only when bit
PT2CFG7-0 is configured as general purpose I/O mode.
Each port pin can be enabled individually by setting the
corresponding control bit.