Port F Control Registers (Gpfcon, Gpfdat, Gpfudp) - Samsung S3C2416 User Manual

S3C2416 RISC MICROPROCESSOR

3.6 PORT F CONTROL REGISTERS (GPFCON, GPFDAT, GPFUDP)

If GPF0 − GPF7 will be used for wake-up signals from Sleep/Stop/Deep Stop mode, the ports will be set in EINT.
Register
GPFCON 0x56000050
GPFDAT 0x56000054
GPFUDP 0x56000058
Reserved 0x5600005c
GPFCON
Reserved
GPF7
GPF6
GPF5
GPF4
GPF3
GPF2
GPF1
GPF0
GPFDAT
Reserved
GPF[7:0]
GPFUDP
Reserved
GPFUDP7
~
GPFUDP0
Address R/W
R/W
R/W
R/W
−
Bit
[31:16] Reserved
[15:14] 00 = Input
10 = EINT[7]
[13:12] 00 = Input
10 = EINT[6]
[11:10] 00 = Input
10 = EINT[5]
[9:8] 00 = Input
10 = EINT[4]
[7:6] 00 = Input
10 = EINT[3]
[5:4] 00 = Input
10 = EINT[2]
[3:2] 00 = Input
10 = EINT[1]
[1:0] 00 = Input
10 = EINT[0]
Bit
[31:8] Reserved
[7:0] When the port is configured as an input port, the corresponding bit is the
pin state. When the port is configured as an output port, the pin state is the
same as the corresponding bit.
When the port is configured as functional pin, the undefined value will be
read.
Bit
[31:16] Reserved
[15:14] [CPU:CPD]
~ 00 = pull-up/down disable
[1:0] 01 = pull-down enable
10 = pull-up enable
11 = not-available
Description
Configures the pins of port F
The data register for port F
Pull-up/down control register for port F
Description
01 = Output
11 = Reserved
01 = Output
11 = Reserved
01 = Output
11 = Reserved
01 = Output
11 = Reserved
01 = Output
11 = Reserved
01 = Output
11 = Reserved
01 = Output
11 = Reserved
01 = Output
11 = Reserved
Description
Description
−
I/O PORTS
Reset Value
0x0
0x0
0x5555
−
10-19