I/O PORTS S3C8245/P8245/C8249/P8249
9-2
PORT DATA REGISTERS
Table 9-2 gives you an overview of the register locations of all four S3C8245/C8249 I/O port data registers. Data
registers for ports 0, 1, 2, 3, 4, and 5 have the general format shown in Figure 9-1.
Table 9-2. Port Data Register Summary
Register Name Mnemonic Decimal Hex Location R/W
Port 0 data register P0 246 F6H Set 1, Bank 0 R/W
Port 1 data register P1 247 F7H Set 1, Bank 0 R/W
Port 2 data register P2 248 F8H Set 1, Bank 0 R/W
Port 3 data register P3 249 F9H Set 1, Bank 0 R/W
Port 4 data register P4 250 FAH Set 1, Bank 0 R/W
Port 5 data register P5 251 FBH Set 1, Bank 0 R/W