UPD78361A Datasheet, PDF (19/88 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLER

µPD78361A, 78362A
2.3.2 General-Purpose Registers
The µPD78362A is provided with eight banks of general-purpose registers with one bank consisting of 8
words × 16 bits. Figure 2-7 shows the configuration of the general-purpose register banks. The general-purpose
registers are mapped to an area of addresses FE80H-FEFFH. Each of these registers can be used as an 8-
bit register. In addition, two registers can be used as one 16-bit register pair (refer to Figure 2-8 ). These
general-purpose registers facilitate complicated multitask processing.
Figure 2-7. Configuration of General-Purpose Register Banks
Bank 7
Bank 1
Bank 0
RP7
RP6
RP5
RP4
RP3
RP2
RP1
RP0
15
0
Figure 2-8. Processing Bits of General-Purpose Registers
FEFFH
RBNK0
8-bit processing
R15 R14
16-bit processing
(FH) RP7 (EH)
RBNK1
R13 R12
(DH) RP6 (CH)
RBNK2
R11 R10
(BH) RP5 (AH)
RBNK3
R9
R8
(9H) RP4 (8H)
RBNK4
R7
R6
(7H) RP3 (6H)
RBNK5
R5
R4
(5H) RP2 (4H)
RBNK6
R3
R2
(3H) RP1 (2H)
FE80H
RBNK7
R1
R0
7
07
0
(1H)
15
RP0
(0H)
0
19