UPD78320 Datasheet, PDF (20/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78320, 78322
2.2 PROCESSOR REGISTERS
The processor registers consist mainly of three groups. They are general registers consisting of 8 banks of sixteen 8-
bit registers, control registers consisting of one 8-bit register and three 16-bit registers, and special function registers such
as peripheral hardware I/O mode registers.
Figure 2-2. Register Configuration
Control Registers
15
0
PC
PSW
General Registers
7
SP
7
CCW
07
0
0
R1
R3
R5
R7
R9
R 11
R 13
R 15
R0
R2
R4
R6
R8
R 10
R 12
R 14
Special Function Registers
7
07
0
SFR 255
SFR 254
SFR 253
SFR 252
SFR 251
SFR 250
SFR 249
SFR 248
SFR 1
SFR 0
Remark The CCWs of the control registers are mapped in the special function register (SFR) area.
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