Samsung S3F401F - Manual (Page 153)

I/O PORTS S3F401F_UM_REV1.00
8-4
4. REGISTERS DESCRIPTION
Table 8-2. Port Control Special Function Registers
Offset Address Register Description R/W Reset Value
0x000 PCON0H Port 0 Control Register (High word) R/W 0x0000_0000
0x004 PCON0L Port 0 Control Register (Low word) R/W 0x0000_0000
0x008 PCON1H Port 1 Control Register (High word) R/W 0x0000_0000
0x00C PCON1L Port 1 Control Register (Low word) R/W 0x0000_0000
0x010 PCON2 Port 2 Control Register R/W 0x0000_0000
0x014 PUR0 Port 0 Pull-up Control Register R/W 0x0000_0000
0x018 PUR1 Port 1 Pull-up Control Register R/W 0x0000_0000
0x01C PUR2 Port 2 Pull-up Control Register R/W 0x0000_0000
0x020 OD0 Port 0 Open-drain Control Register R/W 0x0000_0000
0x024 OD1 Port 1 Open-drain Control Register R/W 0x0000_0000
0x028 OD2 Port 2 Open-drain Control Register R/W 0x0000_0000
0x02C PDATS0 Port 0 Data Set Register W 0x0000_0000
0x030 PDATR0 Port 0 Data Reset Register W 0x0000_0000
0x034 PDATSTAT0 Port 0 Data Status Register R Undefined(note)
0x038 PDATS1 Port 1 Data Set Register W 0x0000_0000
0x03C PDATR1 Port 1 Data Reset Register W 0x0000_0000
0x040 PDATSTAT1 Port 1 Data Status Register R Undefined(note)
0x044 PDATS2 Port 2 Data Set Register W 0x0000_0000
0x048 PDATR2 Port 2 Data Reset Register W 0x0000_0000
0x04C PDATSTAT2 Port 2 Data Status Register R Undefined(note)
0x050 EXTINTH External Interrupt Control Register (High word) R/W 0x0000_0000
0x054 EXTINTL External Interrupt Control Register (Low word) R/W 0x0000_0000
0x058 EXTINTF0 External Interrupt Filter Control Register 0 R/W 0x0000_0000
0x05C EXTINTF1 External Interrupt Filter Control Register 1 R/W 0x0000_0000
NOTE: After reset, IO ports are a general input port. PDATSTAT0, PDATSTAT1 and PDATSTAT2 can be changed
according to the condition of port connection on board and so on.
Base Address
− IOPORT: 0xFF04 4000