參數(shù)資料
型號: M37641F8FP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機
文件頁數(shù): 133/149頁
文件大?。?/td> 1997K
代理商: M37641F8FP
133
7641 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINARY
Notice: This is not a final specification.
change.
Some parametric limits are subject to
G
Status 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 (70
16
). Also, the status register is
cleared by writing the clear status register command (50
16
).
Table 34 lists the definition of each status register bit. After releas-
ing the reset, the status register becomes
80
16
.
Sequencer status (SR7)
The sequencer status indicates the operating status of the 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 write 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
Busy
-
Table 34 Status register (SRD)
Status name
Sequencer status
Reserved
Erase status
Program status
Reserved
Reserved
Reserved
Reserved
Ready
-
Terminated in error
Terminated in error
-
-
-
-
Terminated normally
Terminated normally
-
-
-
-
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