h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 94

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 2 CPU
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.
Rev. 6.00 Feb 22, 2005 page 34 of 1484
REJ09B0103-0600
General Registers (Rn) and Extended Registers (En)
Legend:
SP:
PC:
EXR:
T:
I2 to I0:
CCR:
I:
UI:
Note: * Cannot be used as an interrupt mask bit in the chip.
ER0
ER1
ER2
ER3
ER4
ER5
ER6
ER7 (SP)
Control Registers (CR)
Register Configuration
Overview
MAC
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
63
31
E0
E1
E2
E3
E4
E5
E6
E7
23
Figure 2-7 CPU Registers
Sign extension
07
H:
U:
N:
Z:
V:
C:
MAC:
MACL
Half-carry flag
User bit
Negative flag
Zero flag
Overflow flag
Carry flag
Multiply-accumulate register
R0H
R1H
R2H
R3H
R4H
R5H
R6H
R7H
PC
07
EXR
CCR
41
7 6 5 4 3 2 1 0
T     I2 I1 I0
7 6 5 4 3 2 1 0
I UI H U N Z V C
MACH
R0L
R1L
R2L
R3L
R4L
R5L
R6L
R7L
32
0
0
0