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参数资料
型号： ADE7569ASTZF16
厂商： Analog Devices Inc
文件页数： 97/136页
文件大小： 0K
描述： IC ENERGY METER MCU 16K 64LQFP
标准包装： 1
输入阻抗： *
测量误差： *
电压 - 高输入/输出： *
电压 - 低输入/输出： *
电流 - 电源： *
电源电压： *
测量仪表类型： *
工作温度： *
安装类型： 表面贴装
封装/外壳： 64-LQFP
供应商设备封装： 64-LQFP（10x10）
包装： 托盘
Preliminary Technical Data
Table 94. Flash Read Protection SFR (PROTR, 0xBF)
ADE7566/ADE7569
Bit No.
7 to 0
Mnemonic
PROTR
Default
0xFF
Description
This SFR is used to write the read protection bits for Page 0 to Page 31 of the flash memory
(see the Protecting the Flash section). Clearing the bits enables the protection.
PROTR.7 PROTR.6 PROTR.5 PROTR.4 PROTR.3 PROTR.2 PROTR.1
PROTR.0
Page 28 to
Page 31
Page 24 to
Page 27
Page 20 to
Page 23
Page 16 to
Page 19
Page 12 to
Page 15
Page 8 to
Page 11
Page 4 to
Page 7
Page 0 to
Page 3
Table 95. Flash Low Byte Address SFR (EADRL, 0xC6)
Bit No.
7 to 0
Mnemonic
EADRL
Default
0
Description
Flash Pointer Low Byte Address. This SFR is also used to write the write/erase protection bits for Page 16 to
Page 23 of the flash memory (see the Protecting the Flash section). Clearing the bits enables the
protection.
EADRL.7     EADRL.6   EADRL.5   EADRL.4   EADRL.3   EADRL.2   EADRL.1   EADRL.0
Page 23 Page 22 Page 21 Page 20 Page 19 Page 18 Page 17 Page 16
Table 96. Flash High Byte Address SFR (EADRH, 0xC7)
Bit No.
7 to 0
Mnemonic
EADRH
Default
0
Description
Flash Pointer High Byte Address. This SFR is also used to write the write/erase protection bits for Page 24 to
Page 31 of the flash memory (see the Protecting the Flash section). Clearing the bits enables the
protection.
EADRH.7 EADRH.6 EADRH.5 EADRH.4 EADRH.3
EADRH.2 EADRH.1 EADRH.0
Page 31 Page 30 Page 29 Page 28 Page 27 Page 26 Page 25 Page 24
Flash Functions
Sample 8051 code is provided in this section to demonstrate
Erase All
Erase all of the 16 kB flash memory.
how to use the flash functions. For these examples, the byte of
flash memory 0x3C00 is accessed.
Write Byte
Write 0xF3 into flash memory byte 0x3C00.
MOV FLSHKY, #3Bh
key.
MOV ECON, #03H
Read Byte
; Write Flash security
; Erase All
MOV EDATA, #F3h
; Data to be written
Read flash memory byte 0x3C00.
MOV EADRH, #3Ch
MOV EADRL, #00h
MOV FLSHKY, #3Bh
key.
MOV ECON, #01H
; Setup byte address
; Write Flash security
; Write Byte
MOV EADRH, #3Ch
MOV EADRL, #00h
MOV FLSHKY, #3Bh
key.
MOV ECON, #04H
; Setup byte address
; Write Flash security
; Read Byte
Erase Page
Erase the page containing flash memory byte 0x3C00.
; Data is ready in EDATA register
Erase Page and Write Byte
MOV EADRH, #3Ch
byte address
MOV EADRL, #00h
; Select page through
Erase the page containing flash memory byte 0x3C00 and then
write 0xF3 to that address. Note that the other 511 bytes in this
page are erased.
MOV FLSHKY, #3Bh
key.
MOV ECON, #02H
; Write Flash security
; Erase Page
MOV EDATA, #F3h
MOV EADRH, #3Ch
MOV EADRL, #00h
MOV FLSHKY, #3Bh
; Data to be written
; Setup byte address
; Write Flash security
key.
MOV ECON, #05H
write byte
Rev. PrA | Page 97 of 136
; Erase page and then
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