參數(shù)資料
型號: SPMC916X1CTH16
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP120
封裝: QFP-120
文件頁數(shù): 38/172頁
文件大?。?/td> 1200K
代理商: SPMC916X1CTH16
MOTOROLA
MC68HC916X1
132
MC68HC916X1TS/D
Figure 23 Erasure Flow
FEEPROM PGM FLOW2 TD
nep COUNTER = 5 ?
ARRAY FAILED
TO ERASE
CLEAR LAT
REDUCE VFPE TO
NORMAL READ LEVEL,
EXIT ERASE ROUTINE
REDUCE VFPETO
PROGRAM/ERASE/VERIFY LEVEL
CLEAR nep COUNTER,
CLEAR MARGIN FLAG
SET LAT,
SET ERAS
WRITE TO ARRAY
OR CONTROL BLOCK
SET ENPE
START ERASE PULSE
TIMER (tepk)
DELAY FOR tepk
CLEAR ENPE,
START tpr TIMER
DELAY FOR tpr
MARGIN FLAG
SET ?
Y
N
1
2
NOTES:
1. SEE ELECTRICAL CHARACTERISTICS FOR VFPE PIN VOLTAGE SEQUENCING.
2. THE MARGIN FLAG IS A SOFTWARE-DEFINED FLAG THAT INDICATES WHETHER
THE PROGRAM SEQUENCE IS GENERATING ERASE PULSES OR MARGIN PULSES.
N
Y
READ ARRAY AND SHADOW
REGISTERS TO VERIFY ERASE
ALL LOCATIONS
ERASED ?
N
Y
CALCULATE EM,
SET MARGIN FLAG
SET tepk = EM
INCREMENT nep COUNTER
CALCULATE NEW
tepk
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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