6.1.4.2 Utility Registers
Table 12 - GPIO Direction Register
GPIO_DIR
GPIO DIRECTION
REGISTER
(0x97- RESET=0x00)
BIT
NAME
R/W
DESCRIPTION
7
GPIO7
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
GPIO7 Direction
0 = In
1 = Out
6
5
4
3
2
1
0
GPIO6
GPIO5
GPIO6 Direction
0 = In
1 = Out
GPIO5 Direction
0 = In
1 = Out
GPIO4/nWE
GPIO3/T1
GPIO2/T0
GPIO1/TXD
GPIO0/RXD
GPIO4 Direction
0 = In
1 = Out
GPIO3 Direction
0 = In
1 = Out
GPIO2 Direction
0 = In
1 = Out
GPIO1 Direction
0 = In
1 = Out
GPIO0 Direction
0 = In
1 = Out
SMSC DS – USB97C201
Page 22
Rev. 03/25/2002
PRELIMINARY