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參數資料
型號: MC68C912B32CFU8
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 16-Bit Microcontroller
中文描述: 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數: 44/128頁
文件大小: 748K
代理商: MC68C912B32CFU8
MOTOROLA
44
MC68HC912B32
MC68HC912B32TS/D
7.7 Erasing the Flash EEPROM
The following sequence demonstrates the recommended procedure for erasing the Flash EEPROM.
The V
FP
pin voltage must be at the proper level prior to executing step 4 the first time.
1.
2.
3.
Turn on V
FP
(apply program/erase voltage to the V
FP
pin).
Set the LAT bit and ERAS bit to configure the Flash EEPROM for erasing.
Write to any valid address in the Flash array. This allows the erase voltage to be turned on; the
data written and the address written are not important. The boot block will be erased only if the
control bit BOOTP is negated.
Apply erase voltage by setting ENPE.
Delay for a single erase pulse (t
EPULSE
).
Remove erase voltage by clearing ENPE.
Delay while high voltage is turning off (t
VERASE
).
Read the entire array to ensure that the Flash EEPROM is erased.
If all of the Flash EEPROM locations are not erased, repeat steps 4 through 7 until either the
remaining locations are erased, or until the maximum erase pulses have been applied (n
EP
)
If all of the Flash EEPROM locations are erased, repeat the same number of pulses as re-
quired to erase the array. This provides 100% erase margin.
Read the entire array to ensure that the Flash EEPROM is erased.
10. Clear LAT.
11. Turn off V
FP
(reduce voltage on V
FP
pin to V
DD
).
The flowchart in
Figure 8
demonstrates the recommended erase sequence.
4.
5.
6.
7.
8.
9.
相關PDF資料
PDF描述
MC68CK338 Highly Integrated, Low-Power, 32-Bit Microcontroller
MC68EC060 32-Bit Microprocessors.(32位微處理器)
MC68EN360RC25V QUad Integrated Communications Controller Users Manual
MC68EN360CFE25 QUad Integrated Communications Controller Users Manual
MC68EN360FE25 AC 4C 4#12 PIN PLUG 023
相關代理商/技術參數
參數描述
MC68C912B32FU8 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:16-Bit Microcontroller
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MC68CK16Z1CAG16 功能描述:16位微控制器 - MCU 16BIT 1KRAM 32KHZ CRYSTAL RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT
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MC68CK16Z1CFC16 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:M68HC16Z Series
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