hd64338342hw Renesas Electronics Corporation., hd64338342hw Datasheet - Page 480

• Manufacturer Part Number: hd64338342hw
• Description: Renesas 8-bit Single-chip Microcomputer H8 Family/h8/300l Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

Section 13 LCD Controller/Driver
13.3.2
The relationship between the LCD RAM and the display segments differs according to the duty
cycle. LCD RAM maps for the different duty cycles with the segment not externally expanded are
shown in figures 13.5 to 13.8, and ones with the segments externally expanded are shown in
figures 13.9 to 13.12.
After setting the registers required for display, data is written to the part corresponding to the duty
using the same kind of instruction as for ordinary RAM, and display is started automatically when
turned on. Word- or byte-access instructions can be used for RAM setting.
Rev. 6.00 Aug 04, 2006 page 444 of 680
REJ09B0145-0600
H'F740
H'F753
Figure 13.5 LCD RAM Map with Segments Not Externally Expanded (1/4 Duty)
Relationship between LCD RAM and Display
SEG
COM
SEG
Bit 7
40
2
4
SEG
COM
SEG
Bit 6
40
2
3
SEG
COM
SEG
Bit 5
40
2
2
SEG
COM
SEG
Bit 4
40
2
1
SEG
COM
SEG
Bit 3
39
1
4
SEG
COM
SEG
Bit 2
39
1
3
SEG
COM
SEG
Bit 1
39
1
2
SEG
COM
SEG
Bit 0
39
1
1