Samsung S3C6400X User Manual page 256

S3C6400 RISC MICROPROCESSOR
PORT N CONTROL REGISTERS
There are three control registers including GPNCON, GPNDAT and GPNPUD in the Port N Control Registers.
Register
GPNCON 0x7F008830
GPNDAT 0x7F008834
GPNPUD 0x7F008838
GPNCON
GPN0
GPN1
GPN2
GPN3
GPN4
GPN5 [11:10]
GPN6 [13:12]
GPN7 [15:14]
GPN8 [17:16]
GPN9 [19:18]
GPN10 [21:20]
GPN11 [23:22]
GPN12 [25:24]
GPN13 [27:26]
GPN14 [29:28]
GPN15 [31:30]
Address R/W
R/W
R/W
R/W
Bit
[1:0] 00 = Input
10 = Ext. Interrupt[0]
[3:2] 00 = Input
10 = Ext. Interrupt[1]
[5:4] 00 = Input
10 = Ext. Interrupt[2]
[7:6] 00 = Input
10 = Ext. Interrupt[3]
[9:8] 00 = Input
10 = Ext. Interrupt[4]
00 = Input
10 = Ext. Interrupt[5]
00 = Input
10 = Ext. Interrupt[6]
00 = Input
10 = Ext. Interrupt[7]
00 = Input
10 = Ext. Interrupt[8]
00 = Input
10 = Ext. Interrupt[9]
00 = Input
10 = Ext. Interrupt[10]
00 = Input
10 = Ext. Interrupt[11]
00 = Input
10 = Ext. Interrupt[12]
00 = Input
10 = Ext. Interrupt[13]
00 = Input
10 = Ext. Interrupt[14]
00 = Input
10 = Ext. Interrupt[15]
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Description
Port N Configuration Register
Port N Data Register
Port N Pull-up/down Register
Description
01 = Output
11 = Key pad ROW[0]
01 = Output
11 = Key pad ROW[1]
01 = Output
11 = Key pad ROW[2]
01 = Output
11 = Key pad ROW[3]
01 = Output
11 = Key pad ROW[4]
01 = Output
11 = Key pad ROW[5]
01 = Output
11 = Key pad ROW[6]
01 = Output
11 = Key pad ROW[7]
01 = Output
11 = ADDR_CF[0]
01 = Output
11 = ADDR_CF[1]
01 = Output
11 = ADDR_CF[2]
01 = Output
11 = Reserved
01 = Output
11 = Reserved]
01 = Output
11 = Reserved
01 = Output
11 = Reserved
01 = Output
11 = Reserved
GPIO
Reset Value
0x00
Undefined
0x55555555
Initial State
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
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