Samsung S3C84E5 user manual Port Data Registers

I/O PORTS S3C84E5/C84E9/P84E9

PORT DATA REGISTERS

Table 9-2 gives you an overview of the register locations of all seven S3C84E5/C84E9/P84E9 I/O port data registers. Data registers for ports 0, 1, 2, 3 and 4 have the general format shown in Table 9-2.

Table 9-2. Port Data Register Summary

Register Name	Mnemonic	Decimal	Hex	Location	R/W
Port 0 data register	P0	224	E0H	Set 1, Bank 0	R/W
Port 1 data register	P1	225	E1H	Set 1, Bank 0	R/W
Port 2 data register	P2	226	E2H	Set 1, Bank 0	R/W
Port 3 data register	P3	227	E3H	Set 1, Bank 0	R/W
Port 4 data register	P4	228	E4H	Set 1, Bank 0	R/W

9-2