HD64F38024HV Datasheet, PDF (48/684 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip Microcomputer H8 Family/H8/300L Super Low Power Series

Section 2 CPU
2.1.2 Address Space
The H8/300L CPU supports an address space of up to 64 Kbytes for storing program code and
data.
See section 2.8, Memory Map, for details of the memory map.
2.1.3 Register Configuration
Figure 2.1 shows the register structure of the H8/300L CPU. There are two groups of registers: the
general registers and control registers.
General registers (Rn)
7
07
0
R0H
R0L
R1H
R1L
R2H
R2L
R3H
R3L
R4H
R4L
R5H
R5L
R6H
R6L
R7H
(SP)
R7L
Control registers (CR)
15
0
PC
76543210
CCR I U H U N Z V C
[Legend]
SP: Stack pointer
PC: Program counter
CCR: Condition code register
I: Interrupt mask bit
U: User bit
H: Half-carry flag
N: Negative flag
Z: Zero flag
V: Overflow flag
C: Carry flag
Figure 2.1 CPU Registers
Rev. 8.00 Mar. 09, 2010 Page 26 of 658
REJ09B0042-0800