Samsung C8249 User Manual
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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.
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