Register Configuration; Overview; Figure 2.3 Cpu Registers - Hitachi H8/3062 Hardware Manual

Single-chip microcomputer h8/3062 series; h8/3062b series; h8/3062f-ztat series; h8/3064f-ztat series
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2.4

Register Configuration

2.4.1

Overview

The H8/300H CPU has the internal registers shown in figure 2.3. There are two types of registers:
general registers and control registers.
General Registers (ERn)
15
ER0
ER1
ER2
ER3
ER4
ER5
ER6
ER7
Control Registers (CR)
Legend:
SP
:
Stack pointer
PC
:
Program counter
CCR :
Condition code register
I
:
Interrupt mask bit
UI
:
User bit or interrupt mask bit
H
:
Half-carry flag
U
:
User bit
N
:
Negative flag
Z
:
Zero flag
V
:
Overflow flag
C
:
Carry flag
32
E0
E1
E2
E3
E4
E5
E6
E7
23
PC

Figure 2.3 CPU Registers

0
7
0
R0H
R1H
R2H
R3H
R4H
R5H
R6H
(SP)
R7H
CCR
7
0
R0L
R1L
R2L
R3L
R4L
R5L
R6L
R7L
0
7
6 5 4 3 2 1 0
I UI H U N Z V C

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