HD6433832S Datasheet, PDF (331/560 Pages) Renesas Technology Corp – single-chip microcomputers

Bit 4:
SGX
0
Bit 3: Bit 2: Bit 1: Bit 0:
SGS3 SGS2 SGS1 SGS0
0
0
0
0
SEG₂₀ to
SEG₁₇
Port
Functions of Pins SEG₂₀ to SEG₁
SEG₁₆ to SEG₁₂ to SEG₈ to SEG₄ to
SEG₁₃
SEG₉
SEG₅
SEG₁
Port
Port
Port
Port
0
0
0
1
Port
Port
Port
Port
Port
0
0
1
0
Port
Port
Port
Port
Port
0
0
1
1
Port
Port
Port
Port
Port
0
1
0
0
Port
Port
Port
Port
Port
0
1
0
1
SEG
Port
Port
Port
Port
0
1
1
0
SEG
SEG
Port
Port
Port
0
1
1
1
SEG
SEG
SEG
Port
Port
1
*
*
0
SEG
SEG
SEG
SEG
Port
1
*
*
1
SEG
SEG
SEG
SEG
SEG
1
0
0
0
0
Port
Port
Port
Port
Port
0
0
0
1
Port
Port
Port
Port
Port
0
0
1
0
Port
Port
Port
Port
Port
0
0
1
1
Port
Port
Port
Port
Port
0
1
0
0
Port
Port
Port
Port
Port
0
1
0
1
SEG
Port
Port
Port
Port
0
1
1
0
SEG
SEG
Port
Port
Port
0
1
1
1
SEG
SEG
SEG
Port
Port
1
*
*
0
SEG
SEG
SEG
SEG
Port
1
*
*
1
SEG
SEG
SEG
SEG
SEG
Note: * Don’t care
Remarks
(initial value)
13.2.2 LCD Control Register (LCR)
Bit
Initial value
Read/Write
7
6
5
—
PSW ACT
1
0
0
—
R/W
R/W
4
DISP
0
R/W
3
CKS3
0
R/W
2
CKS2
0
R/W
1
CKS1
0
R/W
0
CKS0
0
R/W
The LCD control register is an 8-bit read/write register for on/off control of the resistive voltage
divider used as the LCD driver power supply, for display data control, and for frame frequency
selection. Upon reset, LCR is initialized to H'80.
Bit 7—Reserved Bit: Bit 7 is reserved; it is always read as 1, and cannot be modified.
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