PD17012_15 Datasheet, PDF (36/320 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

µPD17012, 17P012
4. DATA MEMORY (RAM)
4.1 Outline of Data Memory
Figure 4-1 illustrates the data memory.
As shown in this figure, the data memory consists of a general-purpose data memory, system register, data
buffer, LCD segment register, and port registers.
The data memory stores data, transfers data with the peripheral hardware units, sets display data, transfers
data with the ports, and controls the CPU.
Figure 4-1. Outline of Data Memory
Peripheral hardware
Column address
Data transfer
0 1 2 3 4 5 6 7 8 9 ABCDEF
0
Data buffer
1
2
3
Data memory
4
5
6
BANK0
7 Port register
BANK1
Port register
BANK2
LCD segment register
Port register
System register
Data transfer
Port
Data transfer
LCD
34
Data Sheet U10101EJ4V0DS