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ADE7169ASTF16 数据表(PDF) 89 Page - Analog Devices

部件名 ADE7169ASTF16
功能描述  Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver
PDF  140 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADE7169ASTF16 数据表(HTML) 89 Page - Analog Devices

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Preliminary Technical Data
ADE7169F16
Rev. PrD | Page 89 of 140
LMUX[1:0]
0
0
Reserved
0
1
2x
FP27/COM3 is used as FP27
FP28/COM2 is used as FP28
1
0
3x
FP27/COM3 is used as FP27
FP28/COM2 is used as COM2
1
1
4x
FP27/COM3 is used as COM3
FP28/COM2 is used as COM2
Table 72. LCD Configuration X SFR (LCDCONX, 0x9C)
Bit
Location
Bit
Mnemonic
Default
Value
Description
7
Reserved
0
Reserved
External Resistor Ladder selection bit.
0
External resistor ladder is disabled. Charge pump is enabled.
6
EXTRES
0
1
External resistor ladder is enabled. Charge pump is disabled.
5-0
BIASLVL[5:0]
0
Bias Level Selection bits. See Table 73.
Table 73. LCD bias voltage when contrast control is enabled
1/2 Bias
1/3 Bias
BLVL[5]
VA (V)
VB
VC
VB
VC
0
[]
31
0
:
4
BLVL
V
ref ×
1
[]
⎟
⎠
⎞
⎜
⎝
⎛ +
×
31
0
:
4
1
BLVL
V
ref
VB = VA
VC = 2 x VA
VB = 2 x VA
VC = 3 x VA
Table 74. LCD Configuration Y SFR (LCDCONY, 0xB1)
Bit
Location
Bit
Mnemonic
Default
Value
Description
7
Reserved
0
This bit should be kept cleared for proper operation
6
INV_LVL
0
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
5-2
Reserved
0
These bits should be kept cleared for proper operation
1
UPDATEOVER
0
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.
0
REFRESH
0
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.
Table 75. LCD Clock SFR (LCDCLK, 0x96)
Bit
Location
Bit
Mnemonic
Default
Value
Description



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