參數(shù)資料
型號: M37641F8HP
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): 134/149頁
文件大?。?/td> 1997K
代理商: M37641F8HP
134
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 1 (SRD1)
The status register 1 indicates the status of serial communica-
tions, results from ID checks and results from check sum
comparisons. It can be read after the SRD by writing the read sta-
tus register command (70
16
). Also, status register 1 is cleared by
writing the clear status register command (50
16
).
Table 35 lists the definition of each status register 1 bit. This regis-
ter becomes
00
16
when power is turned on and the flag status is
maintained even after the reset.
Table 35 Status register 1 (SRD1)
00
01
10
11
Time out
-
Not verified
Verification mismatch
Reserved
Verified
Normal operation
SR15 (bit7)
SR14 (bit6)
SR13 (bit5)
SR12 (bit4)
SR11 (bit3)
SR10 (bit2)
SR9 (bit1)
SR8 (bit0)
Boot update completed bit
Reserved
Reserved
Checksum match bit
ID check completed bits
Data reception time out
Reserved
1
Update completed
-
-
Match
0
Not Update
-
-
Mismatch
-
Definition
SRD1 bits
Status name
Boot update completed bit (SR15)
This flag indicates whether the control program was downloaded
to the RAM or not, using the download function.
Check sum consistency bit (SR12)
This flag indicates whether the check sum matches or not when a
program, is downloaded for execution using the download func-
tion.
ID check completed bits (SR11 and SR10)
These flags indicate the result of ID checks. Some commands
cannot be accepted without an ID check.
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 re-
ceived data is discarded and the MCU returns to the command
wait state.
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相關代理商/技術參數(shù)
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