HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 50

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

2.4
2.4.1
The CPU has the internal registers shown in figure 2.7. There are two types of registers: general
registers and control registers.
30
General Registers (Rn) and Extended Registers (En)
Legend
SP:
PC:
EXR:
T:
I2 to I0:
CCR:
I:
UI:
Note: * In the H8S/2345 Series, this bit cannot be used as an interrupt mask.
ER0
ER1
ER2
ER3
ER4
ER5
ER6
ER7 (SP)
Control Registers (CR)
Register Configuration
Overview
Stack pointer
Program counter
Extended control register
Trace bit
Interrupt mask bits
Condition-code register
Interrupt mask bit
User bit or interrupt mask bit*
15
E0
E1
E2
E3
E4
E5
E6
E7
23
Figure 2.7 CPU Registers
07
H:
U:
N:
Z:
V:
C:
Half-carry flag
User bit
Negative flag
Zero flag
Overflow flag
Carry flag
R0H
R1H
R2H
R3H
R4H
R5H
R6H
R7H
PC
07
EXR
CCR
T — — — — I2 I1 I0
7 6 5 4 3 2 1 0
7 6 5 4 3 2 1 0
I UI H U N Z V C
R0L
R1L
R2L
R3L
R4L
R5L
R6L
R7L
0
0