UPD17073 NEC, UPD17073 Datasheet - Page 38
UPD17073
Manufacturer Part Number
UPD17073
Description
4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
Manufacturer
NEC
Datasheet
1.UPD17073.pdf
(226 pages)
- Current page: 38 of 226
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6. GENERAL REGISTERS (GR)
6.1 Outline of General Registers
of 16 nibbles (16
with the data memory with a single instruction.
areas.
38
With the PD17073, the general registers are fixed at row address 0 of BANK0 on the data memory, and consist
The 16 nibbles of the row address 0 specified as the general registers can perform operations and data transfer
In other words, operations and data transfer between data memory areas can be executed with a single instruction.
The general registers can be controlled by data memory manipulation instructions, like the other data memory
0
1
2
3
4
5
6
7
4 bits) of 00H through 0FH.
0
1
2
3
Figure 6-1. Outline of General Registers
4
5
General registers
6
Column address
Data memory
BANK0
7
8
BANK1
9
System registers
A
B
Transfer, operation
C
D
E
F
PD17072,17073
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