參數(shù)資料
型號: M30201M4T
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
中文描述: 單片16位CMOS微機(jī)
文件頁數(shù): 154/159頁
文件大?。?/td> 2319K
代理商: M30201M4T
Unde
Appendix Standard Serial I/O Mode
Peimnay
to “1”. When the program status is cleared, it is set to “0”.
deeopmen
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
154
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 DD-2 gives the definition of each status register bit. After clearing the reset, the status register
outputs “80
16
”.
Table DD-2. Status register (SRD)
Status Bit (SR7)
The status bit indicates the operating status of the flash memory. When power is turned on, “1” (ready)
is set for it. The bit is set to “0” (busy) during an auto write or auto erase operation, but it is set back to
“1” when the operation ends.
Erase Bit (SR5)
The erase bit reports the operating status of the auto erase operation. If an erase error occurs, it is set
to “1”. When the erase status is cleared, it is set to “0”.
Program Bit (SR4)
The program bit reports the operating status of the auto write operation. If a write error occurs, it is set
SRD0 bits
SR7 (bit7)
SR6 (bit6)
SR5 (bit5)
SR4 (bit4)
SR3 (bit3)
SR2 (bit2)
SR1 (bit1)
SR0 (bit0)
Status name
Status bit
Reserved
Erase bit
Program bit
Reserved
Reserved
Reserved
Reserved
Definition
"1" "0"
Ready
-
Terminated in error
Terminated in error
-
-
-
-
Busy
-
Terminated normally
Terminated normally
-
-
-
-
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