upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 815
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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LCD Controller/Driver (LCD-C/D)
Bit position
Bit position
3 to 0
7
4
Initial Value
Initial Value
Table 22-6
Table 22-7
Address
Address
Caution
Access
Access
SEGREG0k[3:0]
Bit name
LCDON0
LIPS0
Bit name
(2)
(3)
LCDM0 - LCD mode control register
The 8-bit LCDM0 register enables/disables the LCD operation, activates edge
enhancement and selects the power supply.
This register can be read/written in 8-bit or 1-bit units.
FFFF FB01
00
LCDM0 register contents
Bits 0, 1, 2, 3, 5, 6 must always be 0.
SEGREG0k - LCD display control register (k = 0 to 39)
The 8-bit registers contain the data that is displayed on the LCD. Each register
contains the data for one of the 40 segments.
These registers can be read/written in 8-bit or 1-bit units.
FFFF FB20
00
SEGREG0k register contents (k = 0 to 39)
The bits 4 to 7 are ignored. They should be set to zero.
Preliminary User’s Manual U17566EE1V2UM00
LCDON0
H
H
R/W
. This register is cleared by any reset.
. This register is cleared by any reset.
7
7
0
Function
Enables/disables LCD display
Selects the power supply
0: Display disabled
1: Display enabled
0: LCD Controller/Driver is not powered
1: LCD Controller/Driver is powered
Function
Status of the LCD segment that is controlled by segment signal k and the
common signal, that corresponds to the bit position.
No segment of the display is visible. The contents of the SEGREG0k
registers are disregarded. The output is at non-selection level.
0: Display off
1: Display on, if corresponding common signal is active
H
H
R/W
to FFFF FB47
6
0
6
0
R/W
5
0
5
0
H
LIPS0
R/W
4
4
0
R/W
R/W
3
0
3
R/W
2
0
2
DATA
R/W
1
0
1
Chapter 22
R/W
0
0
0
815
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