HD6432351 Datasheet, PDF (50/989 Pages) Renesas Technology Corp – The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise

2.4 Register Configuration
2.4.1 Overview
The CPU has the internal registers shown in figure 2-7. There are two types of registers: general
registers and control registers.
General Registers (Rn) and Extended Registers (En)
15
ER0
E0
ER1
E1
ER2
E2
ER3
E3
ER4
E4
ER5
E5
ER6
E6
ER7 (SP)
E7
07
07
0
R0H
R0L
R1H
R1L
R2H
R2L
R3H
R3L
R4H
R4L
R5H
R5L
R6H
R6L
R7H
R7L
Control Registers (CR)
23
0
PC
76543210
EXR T — — — — I2 I1 I0
76543210
CCR I UI H U N Z V C
Legend
SP: Stack pointer
H:
PC: Program counter
U:
EXR: Extended control register
N:
T:
Trace bit
Z:
I2 to I0: Interrupt mask bits
V:
CCR: Condition-code register
C:
I:
Interrupt mask bit
UI:
User bit or interrupt mask bit*
Half-carry flag
User bit
Negative flag
Zero flag
Overflow flag
Carry flag
Note: * In the H8S/2350 Series, this bit cannot be used as an interrupt mask.
Figure 2-7 CPU Registers
30