Specifications

II-4 EPSON S1C6S2N7 TECHNICAL SOFTWARE
CHAPTER 1: CONFIGURATION
Data Memory Map
The S1C6S2N7 built-in RAM has 80 words of data memory,
32 words of display memory for the LCD, and I/O memory
for controlling the peripheral circuit. When writing pro-
grams, note the following:
(1)Since the stack area is in the data memory area, take
care not to overwrite the stack with data. Subroutine
calls or interrupts use 3 words on the stack.
(2)Data memory addresses 000H–00FH are memory register
areas that are addressed with register pointer RP.
Fig. 1.4.1
Data memory map
1.4
Address
Page High
Low
0123456789ABCDE
F
M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF
3
0
1
2
4
5
6
7
8
9
A
B
C
D
E
F
0
RAM (80 words x 4 bits)
R/W
Unused area
I/O memory
Display memory
Unused area
Memory is not mounted in unused area within the memory map
and in memory area not indicated in this chapter. For this reason,
normal operation cannot be assured for programs that have been
prepared with access to these areas.
Note