HD6475328CG Datasheet, PDF (52/459 Pages) Hitachi Semiconductor – Manual Gives a Hardware Description

3.1.3 Register Configuration
Figure 3-2 shows the register structure of the CPU. There are two groups of registers: the general
registers (Rn) and control registers (CR).
General registers (Rn)
15
R0
R1
R2
R3
R4
R5
R6
R7
(FP)
(SP)
Control registers (CR)
15
PC
0
FP: Frame Pointer
SP: Stack Pointer
0
PC: Program Counter
SR
CCR
15
87
0
SR: Status Register
T
I2 I1 I0
N ZV C
CCR: Condition Code Register
CP
CP: Code Page register
DP
DP: Data Page register
EP
EP: Extended Page register
TP
TP: sTack Page register
BR
BR: Base Register
Figure 3-2 Registers in the CPU
33