UPD17073 NEC, UPD17073 Datasheet - Page 26

• Manufacturer Part Number: UPD17073
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
• Manufacturer: NEC

4. DATA MEMORY (RAM)
4.1 General
general register, LCD segment register, port register, and peripheral control register.
display data, transfers data with ports, and controls the CPU.
26
Figure 4-1 outlines the data memory.
As shown in this figure, the data memory consists of a general-purpose data memory, system register, data buffer,
The data memory stores data, transfers data with peripheral hardware, sets conditions for the peripheral hardware,
0
1
2
3
4
5
6
7
0
Port register
1
Port register
Port
2
Data transfer
3
4
Figure 4-1. Outline of Data Memory
5
General register
LCD
6
Column address
Data transfer
Peripheral control register
Data memory
LCD segment register
7
BANK0
8
BANK1
9
Peripheral hardware
System register
A
B
C
Peripheral hardware
Data buffer
D
E
F
Condition
setting
Data transfer
PD17072,17073