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2 CPU
2.2 CPU Registers
The S1C17 core contains eight general purpose registers and three special registers.
Special registers
Bit 23
7
6
5
4
IL[2:0]
IE
6
Bit 0
PC
SP
PSR
3
2
1
0
C
V
Z
N
Figure 2.2.1: Registers
General purpose registers
Bit 23
7
6
5
4
3
2
1
0
EPSON
Bit 0
R7
R6
R5
R4
R3
R2
R1
R0
S1C17001 TECHNICAL MANUAL
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