Data Memory Space - Oki ML63611 User Manual

ML63611 User's Manual
Chapter 2 CPU and Memory Spaces

2.3.2 Data Memory Space

The data memory space contains data RAM and special function registers (SFRs).
The data memory consists of 10 banks. One bank unit is 256 nibbles. BANK 0 is allocated as a SFR area, BANK
1 as the LCD display register, and BANK 2 and the following BANKS are data RAM.
Figure 2-7 shows the configuration of the data memory space.
!
Note:
*: The segment register for LCD is allocated in the address range from 100H to 1FFH.
The user can freely set the segment register's address and bit that correspond to each segment pin. Even
when L32 to L35, which have a port option, are used as output ports, it is possible to freely set their
corresponding address and bit.
OPTION A (C): 1.5 V (3.0 V), Without regulator
circuit for LCD bias
5FFH
BANK5
500H
4FFH
BANK4
400H
3FFH
BANK3
300H
2FFH
BANK2
200H
1FFH
BANK1
100H
0FFH
BANK0
000H
Figure 2-7 Data Memory Space Configuration
2 – 8
Data RAM area
(1024 nibbles)
Segment register for LCD*
(256 nibbles: logical address)
SFR area
(256 nibbles)
OPTION B (D): 1.5 V (3.0 V), With regulator
circuit for LCD bias