HD6432646 Hitachi, HD6432646 Datasheet - Page 990

• Manufacturer Part Number: HD6432646
• Description: (HD64F264x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

LPCR—LCD Port Control Register
956
Note: COM4 to COM1 function as ports when the setting of SGS3 to SGS0 is 0000 (initial value).
Duty Cycle Select/Common Function Select
DTS1
Bit
Initial value
Read/Write
Bit 7
0
1
Segment Driver Select (H8S/2646, H8S/2646R, H8S/2645)
Note: When using external expansion, set a value of 0000 for SGS3 to SGS0. When the setting of SGS3
Segment Driver Select (H8S/2648, H8S/2648R, H8S/2647)
Note: When using external expansion, set a value of 0000 for SGS3 to SGS0. When the setting of SGS3
SGS3 SGS2 SGS1 SGS0
SGS3 SGS2 SGS1 SGS0
DTS0
Bit 3
Bit 3
Bit 6
0
1
0
1
0
1
0
1
to SGS0 is 0000, COM4 to COM1 also function as ports.
to SGS0 is 0000, COM4 to COM1 also function as ports.
Bit 2
Bit 2
CMX
Bit 5
0
1
0
1
*
*
0
1
0
1
0
1
*
DTS1
Bit 1
Bit 1
Static
1/2 duty
1/3 duty
1/4 duty
R/W
Duty Cycle
0
1
0
1
*
0
1
0
1
*
7
0
Bit 0
Bit 0
0
1
0
1
0
1
*
*
0
1
0
1
0
1
0
1
0
1
COM1
COM4 to COM1
COM2 to COM1
COM4 to COM1
COM3 to COM1
COM4 to COM1
COM4 to COM1
Common Drivers
SEG24 to
SEG17
Port
SEG
SEG
SEG
SEG
SEG
Settting
prohibited
Settting
prohibited
SEG40
to
SEG33
Port
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
DTS0
R/W
6
0
SEG32
to
SEG29
Port
Port
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
Port
Port
SEG
SEG
SEG
SEG
Settting
prohibited
Settting
prohibited
SEG16 to
SEG13
CMX
Function of Pins SEG24 to SEG1
Function of Pins SEG40 to SEG1
R/W
5
0
SEG28
to
SEG25
Port
Port
Port
SEG
SEG
SEG
SEG
SEG
SEG
SEG
COM4, COM3, and COM2 can be used as ports (Initial value)
COM4, COM3, and COM2 output the same waveform as COM1
COM4 and COM3 can be used as ports
COM4 outputs the same waveform as COM3, and COM2 outputs
the same waveform as COM1
COM4 can be used as a port
Do not use COM4
SEG12 to
SEG9
Port
Port
Port
SEG
SEG
SEG
Settting
prohibited
Settting
prohibited
SEG24
to
SEG21
Port
Port
Port
Port
SEG
SEG
SEG
SEG
SEG
SEG
—
—
4
0
SEG8 to
SEG5
Port
Port
Port
Port
SEG
SEG
Settting
prohibited
Settting
prohibited
SEG20
to
SEG17
Port
Port
Port
Port
Port
SEG
SEG
SEG
SEG
SEG
—
SGS3
R/W
H'FC30
SEG4 to
SEG1
Port
Port
Port
Port
Port
SEG
Settting
prohibited
Settting
prohibited
SEG16
to
SEG13
Port
Port
Port
Port
Port
Port
SEG
SEG
SEG
SEG
3
0
SEG12
to
SEG9
Port
Port
Port
Port
Port
Port
Port
SEG
SEG
SEG
Initial value (external
expansion enabled)
External expansion
not possible
Notes
SGS2
R/W
2
0
Notes
SEG8
to
SEG5
Port
Port
Port
Port
Port
Port
Port
Port
SEG
SEG
*: Don't care
SGS1
SEG4
to
SEG1
Port
Port
Port
Port
Port
Port
Port
Port
Port
SEG
R/W
1
0
Initial value (external
expansion enabled)
External expansion
not possible
SGS0
R/W
Notes
*: Don't care
0
0
*: Don't care
LCD