參數(shù)資料
型號(hào)： M38507M8A-XXXSP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 6.25 MHz, MICROCONTROLLER, PDIP42
封裝： 13 X 36.72 MM, 1.78 MM PITCH, PLASTIC, SDIP-42
文件頁數(shù)： 62/90頁
文件大?。?/td> 899K
代理商： M38507M8A-XXXSP
Rev.2.10
2005.11.14
page 63 of 86
REJ03B0093-0210
3850 Group (Spec.A)
qStatus Register (SRD)
The status register indicates operating status of the flash memory
and status such as whether an erase operation or a program
ended successfully or in error. It can be read by writing the read
status register command (7016). Also, the status register is
cleared by writing the clear status register command (5016).
Table 13 lists the definition of each status register bit. After releas-
ing the reset, the status register becomes “8016”.
Sequencer status (SR7)
The sequencer status indicates the operating status of the flash
memory.
After power-on and recover from deep power down mode, the se-
quencer status is set to “1” (ready).
This status bit is set to “0” (busy) during write or erase operation
and is set to “1” upon completion of these operations.
Erase status (SR5)
The erase status indicates the operating status of erase operation.
If an erase error occurs, it is set to “1”. When the erase status is
cleared, it is set to “0”.
Program status (SR4)
The program status indicates the operating status of write opera-
tion. If a program error occurs, it is set to “1”. When the program
status is cleared, it is set to “0”.
SRD0 bits
SR7 (bit7)
SR6 (bit6)
SR5 (bit5)
SR4 (bit4)
SR3 (bit3)
SR2 (bit2)
SR1 (bit1)
SR0 (bit0)
Definition
“1”“0”
Table 13 Definition of each bit of status register (SRD)
Status name
Sequencer status
Reserved
Erase status
Program status
Reserved
Ready
-
Terminated in error
-
Busy
-
Terminated normally
-
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