Prime Register Space - Samsung S3C84I8 User Manual

ADDRESS SPACES

PRIME REGISTER SPACE

The lower 192 bytes (00H–BFH) of the S3C84I9/F84I9's two 256-byte register pages (S3C84I89/F84I8's one
256-byte) is called prime register area. Prime registers can be accessed using any of the seven addressing
modes (see Chapter 3, "Addressing Modes.")
The prime register area on page 0 is immediately addressable following a reset. In order to address prime
registers on pages 0, or 1 you must set the register page pointer (PP) to the appropriate source and destination
values.
Bank 0
FFH
F0H
E0H
D0H
C0H
CPU and system control
General-purpose
Peripheral and I/O
2-10
Set 1
Bank 1
Figure 2-6. Set 1, Set 2, Prime Area Register(S3C84I9/F84I9)
Page 1
FFH
Page 0
Set 2
C0H
BFH Page 0
Prime
Space
00H
S3C84I8/F84I8/C84I9/F84I9
Page 2
13H
LCD DATA
Register
Area
00H