參數(shù)資料
型號(hào)： ADE7169ASTF16
廠商： ANALOG DEVICES INC
元件分類： 模擬信號(hào)調(diào)理
英文描述： Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver
中文描述： ANALOG CIRCUIT, PQFP64
封裝： MS-026BCD, LQFP-64
文件頁數(shù)： 93/140頁
文件大?。?/td> 1359K
代理商： ADE7169ASTF16
Preliminary Technical Data
ADE7169F16
LCD. The 128Hz clock is beneficial for battery operation
because it consumes less power than the 2048Hz clock. The
frame rate is set by the FD[3:0] bits in the LCD Clock SFR
(LCDCLK, 0x96)—see Table 76 and Table 77.
Rev. PrD | Page 93 of 140
The LCD waveform is inverted at twice the LCD waveform
frequency, f
LCD
. This way each frame has an average DC offset of
zero. ADC offset would degrade the lifetime and performance
of the LCD.
BLINK MODE
Blink mode is enabled by setting the BLINKEN bit in the LCD
Configuration SFR (LCDCON, 0x95). This mode is used to
alternate between LCD on and off states so that the LCD screen
appears to blink. There are two blinking modes: a software
controlled blink mode and an automatic blink mode.
Software Controlled Blink Mode
The LCD blink rate can be controlled by user code with the
BLKMOD[1:0] bits in the LCD Clock SFR (LCDCLK, 0x96) by
toggling the bits to turn the display on and off at a rate
determined by the MCU code.
Automatic Blink Mode
There are five blink rates available if the RTC peripheral is
enabled (enable the RTC by…xxx). These blink rates are
selected by the BLKMOD[1:0] and BLKFREQ[1:0] bits in the
LCD Clock SFR (LCDCLK, 0x96) – see Table 75.
DISPLAY ELEMENT CONTROL
A bank of 15 bytes of data memory located in the LCD module
controls the on or off state of each segment of the LCD. The
LCD data memory is stored in addresses 0 through 14 in the
LCD module. Each byte configures the on and off states of two
segment lines. The LSBs store the state of the even numbered
segment lines and the MSBs store the state of the odd numbered
segment lines. For example, LCD data address zero refers to
segment lines one and zero—see Table 82. Note that the LCD
data memory is maintained in the PSM2 operating mode.
Table 82. LCD Data Memory accessed indirectly through
LCD Pointer SFR (LCDPTR, 0xAC) and LCD Data SFR
(LCDDAT, 0xAE)
LCD Memory
Address
COM3
COM2
COM1
COM0
COM3
COM2
COM1
COM0
0Eh
FP28
FP28
FP28
FP28
0Dh
FP27
FP27
FP27
FP27
FP26
FP26
FP26
FP26
0Ch
FP25
FP25
FP25
FP25
FP24
FP24
FP24
FP24
0Bh
FP23
FP23
FP23
FP23
FP22
FP22
FP22
FP22
0Ah
FP21
FP21
FP21
FP21
FP20
FP20
FP20
FP20
09h
FP19
FP19
FP19
FP19
FP18
FP18
FP18
FP18
08h
FP17
FP17
FP17
FP17
FP16
FP16
FP16
FP16
07h
FP15
FP15
FP15
FP15
FP14
FP14
FP14
FP14
06h
FP13
FP13
FP13
FP13
FP12
FP12
FP12
FP12
05h
FP11
FP11
FP11
FP11
FP10
FP10
FP10
FP10
04h
FP9
FP9
FP9
FP9
FP8
FP8
FP8
FP8
03h
FP7
FP7
FP7
FP7
FP6
FP6
FP6
FP6
02h
FP5
FP5
FP5
FP5
FP4
FP4
FP4
FP4
01h
FP3
FP3
FP3
FP3
FP2
FP2
FP2
FP2
00h
FP1
FP1
FP1
FP1
FP0
FP0
FP0
FP0
COM# designates the common lines
FP# designates the segment lines
The LCD data memory is accessed indirectly through the LCD
Pointer SFR (LCDPTR, 0xAC)and Table 80. LCD Data SFR
(LCDDAT, 0xAE). Moving a value to the LCD Pointer SFR
(LCDPTR, 0xAC) selects the LCD data byte to be accessed and
initiates a read or write operation—see Table 79.
Writing to LCD Data registers
To update the LCD data memory, first set the LSB of the LCD
Configuration Y SFR (LCDCONY, 0xB1) to freeze the data
being displayed on the LCD while updating it. Then, move the
data to the LCD Data SFR (LCDDAT, 0xAE) prior to accessing
the LCD Pointer SFR (LCDPTR, 0xAC). When the MSB of the
LCD Pointer SFR (LCDPTR, 0xAC) is set, the content of the
LCD Data SFR (LCDDAT, 0xAE) is transferred to the internal
LCD data memory designated by the address in the LCD
Pointer SFR (LCDPTR, 0xAC). Clear the LSB of the LCD
Configuration Y SFR (LCDCONY, 0xB1) when all of the data
memory has been updated to allow to use the new LCD set up
for display.
Sample 8052 code to update the segments attached to pins FP10
and FP11 on is shown below:
ORL
LCDCONY,#01h ; start updating the data
MOV
LCDDATA,#FFh
MOV
LCDPTR,#80h OR 05h
ANL
LCDCONY,#0FEh ; update finished
Reading LCD Data registers
When the MSB of the LCD Pointer SFR (LCDPTR, 0xAC) is
cleared, the content of the LCD Data memory address
designated by LCDPTR are transferred to the LCD Data SFR
(LCDDAT, 0xAE).
Sample 8052 code to read the contents of LCD data memory
address 07h, which holds the on and off state of the segments
attached to FP14 and FP15, is shown below:
MOV
LCDPTR,#NOT 80h AND 07h
MOV
R1, LCDDATA
VOLTAGE GENERATION
The ADE7169F16 provides two ways to generate the LCD
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ADE7169ASTF16-RL 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver
ADE7169ASTZF16 功能描述:IC ENERGY METER 1PHASE 64LQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 能量測(cè)量 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:*
ADE7169ASTZF16-RL 功能描述:IC ENERGY METER 1PHASE 64LQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 能量測(cè)量 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:*
ADE7169F16 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver
ADE75 制造商:AD 制造商全稱:Analog Devices 功能描述:Single-Phase Energy Measurement IC with 8052 MCU, RTC and LCD driver
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