Eripheral; Ircuits And; Peration; Memory Map - Epson S1C63358 Technical Manual

CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Memory Map)
4 P
CHAPTER
The peripheral circuits of S1C63358 (timer, A/D, I/O, etc.) are interfaced with the CPU in the
memory mapped I/O method. Thus, all the peripheral circuits can be controlled by accessing the I/O
memory on the memory map using the memory operation instructions. The following sections explain
the detailed operation of each peripheral circuit.

4.1 Memory Map

The S1C63358 data memory consists of 512-word RAM, 32-word display memory and 76-word peripheral
I/O memory area. Figure 4.1.1 shows the overall memory map of the S1C63358, and Tables 4.1.1(a)–(f) the
peripheral circuits' (I/O space) memory maps.
0000H
0200H
F000H
FF00H
FFFFH
Note: Memory is not implemented in unused areas within the memory map. Further, some non-imple-
mentation areas and unused (access prohibition) areas exist in the peripheral I/O area. If the
program that accesses these areas is generated, its operation cannot be guaranteed. Refer to the
I/O memory maps shown in Tables 4.1.1 (a)–(f) for the peripheral I/O area.
16

ERIPHERAL

RAM area
Unused area
I/O memory area
Fig. 4.1.1 Memory map
EPSON
C

IRCUITS AND

F000H
Display memory area
F020H
Unused area
FF00H
Peripheral I/O area
FFFFH
O

PERATION

S1C63358 TECHNICAL MANUAL