ade7169f16 Analog Devices, Inc., ade7169f16 Datasheet - Page 89

• Manufacturer Part Number: ade7169f16
• Description: Single-phase Energy Measurement Ic With 8052 Mcu, Rtc And Lcd Driver
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
Table 72. LCD Configuration X SFR (LCDCONX, 0x9C)
Table 73. LCD bias voltage when contrast control is enabled
Table 74. LCD Configuration Y SFR (LCDCONY, 0xB1)
Table 75. LCD Clock SFR (LCDCLK, 0x96)
Bit
Location
7
6
5-0
0
1
Bit
Location
7
6
5-2
1
0
Bit
Location
BLVL[5]
Bit
Mnemonic
Reserved
EXTRES
BIASLVL[5:0]
Bit
Mnemonic
Reserved
INV_LVL
Reserved
UPDATEOVER
REFRESH
Bit
Mnemonic
V
V
ref
ref
BLVL
1
V
BLVL
31
A
(V)
4
0 :
31
4
0 :
Default
Value
0
0
0
Default
Value
0
0
0
0
0
Default
Value
V
B
V
= V
B
Update finished flag bit. This bit is updated by LCD driver.
When set, indicates that the LCD memory has been updated and a new
frame has begun.
A
This bit should be kept cleared for proper operation
LMUX[1:0]
0
0
1
1
Description
Reserved
External Resistor Ladder selection bit.
0
1
Bias Level Selection bits. See Table 73.
Description
Frame Inversion Mode Enable bit
If this bit is set, frames are inverted every other frame
If this bit is cleared, frames are not inverted
These bits should be kept cleared for proper operation
Refresh LCD data memory bit, this bit should be set by user.
When set, the LCD driver does not use the data in the LCD data registers to
update display. The LCD data registers can be updated by the 8052.
When clear, the LCD driver will use the data in the LCD data registers to
update display at the next frame.
Description
1/2 Bias
Rev. PrD | Page 89 of 140
External resistor ladder is disabled. Charge pump is enabled.
External resistor ladder is enabled. Charge pump is disabled.
0
1
0
1
V
C
Reserved
2x
FP27/COM3 is used as FP27
FP28/COM2 is used as FP28
3x
FP27/COM3 is used as FP27
FP28/COM2 is used as COM2
4x
FP27/COM3 is used as COM3
FP28/COM2 is used as COM2
= 2 x V
V
C
A
V
B
= 2 x V
V
B
A
1/3 Bias
V
C
= 3 x V
V
C
A
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