Port Data Registers; S3C8275X/C8278X/C8274X I/O Port Data Register Format; Port Data Register Summary - Samsung S3C8275X User Manual

I/O PORTS

PORT DATA REGISTERS

Table 9-2 gives you an overview of the register locations of all seven S3C8275X/C8278X/C8274X I/O port data
registers. Data registers for ports 0, 1, 2, 3, 4, 5, and 6 have the general format shown in Figure 9-1.
Register Name
Port 0 data register
Port 1 data register
Port 2 data register
Port 3 data register
Port 4 data register
Port 5 data register
Port 6 data register
Figure 9-1. S3C8275X/C8278X/C8274X I/O Port Data Register Format
9-2
Table 9-2. Port Data Register Summary
Mnemonic
P0
P1
P2
P3
P4
P5
P6
S3C8275X/C8278X/C8274X I/O Port Data Register Format (n = 0-6)
MSB .7 .6 .5
Pn.7 Pn.6 Pn.5
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
Decimal Hex
240 F0H
241 F1H
242 F2H
243 F3H
244 F4H
245 F5H
246 F6H
.4 .3 .2 .1
Pn.4 Pn.3 Pn.2 Pn.1
Location
Set 1, Bank 0
Set 1, Bank 0
Set 1, Bank 0
Set 1, Bank 0
Set 1, Bank 0
Set 1, Bank 0
Set 1, Bank 0
.0 LSB
Pn.0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W