HD64336901G Renesas Technology, HD64336901G Datasheet - Page 42

• Manufacturer Part Number: HD64336901G
• Description: (HD64xxx Series) 16-BIT MICROCONTROLLER
• Manufacturer: Renesas Technology

2.2
The H8/300H CPU has the internal registers shown in figure 2.2. There are two types of registers;
general registers and control registers. The control registers are a 24-bit program counter (PC), and
an 8-bit condition code register (CCR).
Rev. 1.00, 11/03, page 14 of 376
General registers (ERn)
Control registers (CR)
Register Configuration
ER0
ER1
ER2
ER3
ER4
ER5
ER6
ER7 (SP)
[Legend]
SP:
PC:
CCR:
I:
UI:
15
Stack pointer
Program counter
Condition-code register
Interrupt mask bit
User bit
Figure 2.2 CPU Registers
E0
E1
E2
E3
E4
E5
E6
E7
23
0 7
H:
U:
N:
Z:
V:
C:
R0H
R1H
R2H
R3H
R4H
R5H
R6H
R7H
PC
Half-carry flag
User bit
Negative flag
Zero flag
Overflow flag
Carry flag
CCR
0 7
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