TMP86C420UG Datasheet, PDF (138/160 Pages) Toshiba Semiconductor – 8 Bit Microcontroller

13. LCD Driver
13.3 LCD Display Operation
TMP86C420UG
Note: –: This bit is not used for display data
Table 13-5 LCD Display Data Area (DBR)
Address
0F80H
0F81H
0F82H
0F83H
0F84H
0F85H
0F86H
0F87H
0F88H
0F89H
0F8AH
0F8BH
0F8CH
0F8DH
0F8EH
0F8FH
Bit 7
COM3
Bit 6
Bit 5
SEG1
SEG3
SEG5
SEG7
SEG9
SEG11
SEG13
SEG15
SEG17
SEG19
SEG21
SEG23
SEG25
SEG27
SEG29
SEG31
COM2
COM1
Bit 4
COM0
Bit 3
COM3
Bit 2
Bit 1
SEG0
SEG2
SEG4
SEG6
SEG8
SEG10
SEG12
SEG14
SEG16
SEG18
SEG20
SEG22
SEG24
SEG26
SEG28
SEG30
COM2
COM1
Bit 0
COM0
13.3.2 Blanking
Blanking is enabled when EDSP is cleared to “0”.
Blanking turns off LCD through outputting a GND level to SEG/COM pin.
When in STOP mode, EDSP is cleared to “0” and automatically blanked. To redisplay ICD after exiting
STOP mode, it is necessary to set EDSP back to “1”.
Note:During reset, the LCD segment outputs and LCD common outputs are fixed “0” level. But the multiplex termi-
nal of input/output port and LCD segment output becomes high impedance. Therefore, when the reset input is
long remarkably, ghost problem may appear in LCD display.
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