參數(shù)資料
型號: M30201
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
文件頁數(shù): 155/159頁
文件大?。?/td> 2319K
代理商: M30201
Appendix Standard Serial I/O Mode
Peimnay
These flags indicate the result of ID checks. Some commands cannot be accepted without an ID
check.
Unde
deeopmen
Mitsubishi microcomputers
M30201 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
155
Status Register 1 (SRD1)
Status register 1 indicates the status of serial communications, results from ID checks and results from
check sum comparisons. It can be read after the SRD by writing the read status register command (70
16
).
Also, status register 1 is cleared by writing the clear status register command (50
16
).
Table DD-3 gives the definition of each status register 1 bit. “00
16
” is output when power is turned ON and
the flag status is maintained even after the reset.
Table DD-3. Status register 1 (SRD1)
Boot Update Completed Bit (SR15)
This flag indicates whether the control program was downloaded to the RAM or not, using the down-
load function.
Check Sum Consistency Bit (SR12)
This flag indicates whether the check sum matches or not when a program, is downloaded for execu-
tion using the download function.
ID Check Completed Bits (SR11 and SR10)
Data Reception Time Out (SR9)
This flag indicates when a time out error is generated during data reception. If this flag is attached
during data reception, the received data is discarded and the microcomputer returns to the command
wait state.
SRD1 bits
SR15 (bit7)
SR14 (bit6)
SR13 (bit5)
SR12 (bit4)
SR11 (bit3)
SR10 (bit2)
SR9 (bit1)
SR8 (bit0)
Status name
Boot update completed bit
Reserved
Reserved
Checksum match bit
ID check completed bits
Data receive time out
Reserved
Definition
"1" "0"
Update completed
-
-
Match
00
01
10
11
Not update
-
-
Mismatch
Normal operation
-
Not verified
Verification mismatch
Reserved
Verified
Time out
-
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