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SH69P55A/K55A
31
3. SH69P55A/69K55A both has LCD driver and LED driver, and only one is valid at one time. If LEDEN = 1, the LCD driver is
disabled; if LEDEN = 0, the LED driver is disabled.
SEG Configuration Register: $2E
Address
Bit 3
Bit 2
Bit 1
Bit 0
R/W
Remarks
$2E RLCD PS2 PS1 PS0 R/W
Bit2 - 0: Configuration the segment (See the following table)
Bit3: LCD bias resistor set register
PS2 PS1 PS0 PE.3 PE.2 PE.1 PE.0 PH.3 PH.2 PH.1 PH.0 PI.3
PI.2
PI.1
PI.0 PF.3 PF.2 PF.1 PF.0 PA.3 PA.2 PA.1 PA.0
0 0 0 I/O I/O I/O
I/O I/O I/O I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O I/O I/O I/O I/O
I/O
0 0 1 I/O I/O I/O
I/O I/O I/O I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O S5 S4 S3 S2
S1
0 1 0 I/O I/O I/O
I/O I/O I/O I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
S6 S5 S4 S3 S2
S1
0 1 1 I/O I/O I/O
I/O I/O I/O I/O
I/O
I/O
I/O
I/O
I/O
I/O
S7
S6 S5 S4 S3 S2
S1
1 0 0 I/O I/O I/O
I/O I/O I/O I/O
I/O
I/O
I/O
I/O
I/O
S8
S7
S6 S5 S4 S3 S2
S1
1 0 1 I/O I/O I/O
I/O I/O I/O I/O
I/O
S12 S11 S10
S9
S8
S7
S6 S5 S4 S3 S2
S1
1 1 0 I/O I/O I/O
I/O S16 S15 S14 S13 S12 S11 S10
S9
S8
S7
S6 S5 S4 S3 S2
S1
1
1
1 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10
S9
S8
S7
S6 S5 S4 S3 S2
S1
*Sx = SEGx
If the PORTE3 - 0 are shared as the COM5 - 8 for LCD display, then the PORTE3 - 0 cannot shared as the SEG20 - 17 for
LCD display.
SEGs and COMs shall be configured correctly before the LCD is turned on.
Configuration of LCD RAM Area: (LCD 1/4 duty, 1/3 bias, COM uses COM1 - 4, SEG uses SEG1 - 20)
Bit3 Bit2 Bit1 Bit0
Bit3 Bit2 Bit1 Bit0
Address
COM4 COM3 COM2 COM1
Address
COM4 COM3 COM2 COM1
$300 SEG1 SEG1 SEG1 SEG1 $30A SEG11 SEG11 SEG11 SEG11
$301 SEG2 SEG2 SEG2 SEG2 $30B SEG12 SEG12 SEG12 SEG12
$302 SEG3 SEG3 SEG3 SEG3 $30C SEG13 SEG13 SEG13 SEG13
$303 SEG4 SEG4 SEG4 SEG4 $30D SEG14 SEG14 SEG14 SEG14
$304 SEG5 SEG5 SEG5 SEG5 $30E SEG15 SEG15 SEG15 SEG15
$305 SEG6 SEG6 SEG6 SEG6 $30F SEG16 SEG16 SEG16 SEG16
$306 SEG7 SEG7 SEG7 SEG7 $310 SEG17 SEG17 SEG17 SEG17
$307 SEG8 SEG8 SEG8 SEG8 $311 SEG18
SEG18
SEG18
SEG18
$308 SEG9 SEG9 SEG9 SEG9 $312 SEG19 SEG19 SEG19 SEG19
$309 SEG10
SEG10
SEG10
SEG10 $313 SEG20 SEG20 SEG20 SEG20
Configuration of LCD RAM Area: (LCD 1/4 duty, 1/3 bias, COM uses COM5 - 8, SEG uses SEG1 - 16)
Bit3 Bit2 Bit1 Bit0
Bit3 Bit2 Bit1 Bit0
Address
COM8 COM7 COM6 COM5
Address
COM8 COM7 COM6 COM5
$300 SEG1 SEG1 SEG1 SEG1 $308 SEG9 SEG9 SEG9 SEG9
$301 SEG2 SEG2 SEG2 SEG2 $309 SEG10 SEG10 SEG10 SEG10
$302 SEG3 SEG3 SEG3 SEG3 $30A SEG11 SEG11 SEG11 SEG11
$303 SEG4 SEG4 SEG4 SEG4 $30B SEG12 SEG12 SEG12 SEG12
$304 SEG5 SEG5 SEG5 SEG5 $30C SEG13 SEG13 SEG13 SEG13
$305 SEG6 SEG6 SEG6 SEG6 $30D SEG14 SEG14 SEG14 SEG14
$306 SEG7 SEG7 SEG7 SEG7 $30E SEG15 SEG15 SEG15 SEG15
$307 SEG8 SEG8 SEG8 SEG8 $30F SEG16 SEG16 SEG16 SEG16