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EPSON
S1C63358 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Memory Map)
CHAPTER
4 P
ERIPHERAL
C
IRCUITS
AND
O
PERATION
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
RAM area
Unused area
I/O memory area
Display memory area
Unused area
Peripheral I/O area
F000H
F020H
FF00H
FFFFH
Fig. 4.1.1 Memory map
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.
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