General-Purpose Input/Outp uts (GPIOs)
114 October 8, 2006
Preliminary
8.5 Register Descriptions
The remainder of this section lists and describes the GPIO registers, in numerical order by
address offset.
0xFD4 GPIOPeriphID5 0x00000000 RO Peripheral identification 5 134
0xFD8 GPIOPeriphID6 0x00000000 RO Peripheral identification 6 135
0xFDC GPIOPeriphID7 0x00000000 RO Peripheral identification 7 136
0xFE0 GPIOPeriphID0 0x00000061 RO Peripheral identification 0 137
0xFE4 GPIOPeriphID1 0x00000000 RO Peripheral identification 1 138
0xFE8 GPIOPeriphID2 0x00000018 RO Peripheral identification 2 139
0xFEC GPIOPeriphID3 0x00000001 RO Peripheral identification 3 140
0xFF0 GPIOPCellID0 0x0 000000D RO GPIO PrimeCell ide nti fic ati on 0 141
0xFF4 GPIOPCellID1 0x0 000 00F 0 RO GPIO PrimeCe ll ide nti fic ati on 1 142
0xFF8 GPIOPCellID2 0x0000000 5 RO GPIO PrimeCe ll ide nti fic ati on 2 143
0xFFC GPIOP Cel lID 3 0x0000 00B 1 RO GPIO PrimeCell identi fic ati on 3 144
a. The default reset value for the GPIOAFSEL register is 0x00000000 for all GPIO pins, with the exception of the five JTAG pins
(PB7 and PC[3:0]. These five pins default to JTA G functionality. Because of this, the default reset value of GPIOAFSEL for
GPIO Port B is 0x00000080 while the default reset value of GPIOAFSEL for Port C is 0x0000000F.
Table 8-3. GPIO Register Map (Continued)
Offset Name Reset Type Description
See
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