LAPIS Semiconductor ML610421, User Manual, Page: 364 / 437

ML610Q421/ML610Q422/ML610421 User’s Manual
Chapter 26 LCD Drivers
26 – 26
26.3.2 Segment Mapping When the Programmable Display Allocation Function is Not Used
When not using the programmable display function (DASN bit of DSPMOD1 register is “0”), three types of segment map
are available for the display registers (DSPR00 to 71), selected by the DADM1 bit and DADM0 bit.
(1) Type 2: Recommended for when using COM9 to COM15 (1/9 to 1/16 duty)
(2) Type 3: Recommended for when using COM0 to COM7 (1/1 to 1/8 duty)
Figure 26-7 Configurations of Display register segment map types
Note:
When the programmable display function is not used (DASN = “0”), display allocation register A (0F400H to 0F5FFH)
and display allocation register B (0F600H to 0F7FFH) can be used as 1K-byte data memory(RAM).
DSPR01 DSPR00
DSPR03 DSPR02
DSPR05 DSPR04
DSPR07 DSPR06
DSPR61 DSPR60
DSPR63 DSPR62
C
O
M
0
C
O
M
7
C
O
M
8
C
O
M
1
5
SEG0
SEG1
SEG2
SEG3
SEG48
SEG49
DSPR40 DSPR00
DSPR41 DSPR01
DSPR42 DSPR02
DSPR43 DSPR03
DSPR70 DSPR30
DSPR71 DSPR31
C
O
M
0
C
O
M
7
C
O
M
8
C
O
M
1
5
SEG0
SEG1
SEG2
SEG3
SEG48
SEG49