m37516e6hp Renesas Electronics Corporation., m37516e6hp Datasheet - Page 74
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m37516e6hp
Manufacturer Part Number
m37516e6hp
Description
Single-chip 8-bit Cmos Microcomputer
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M37516E6HP.pdf
(92 pages)
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7516 Group
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 status register (SRD) by writ-
ing the read status register command (70
1 is cleared by writing the clear status register command (50
Table 19 lists the definition of each status register 1 bit. This regis-
ter becomes “00
maintained even after the reset.
Table 19 Definition of each bit of status register 1 (SRD1)
Rev.1.01
Status Register 1 (SRD1)
SRD1 bits
SR15 (bit7)
SR14 (bit6)
SR13 (bit5)
SR12 (bit4)
SR11 (bit3)
SR10 (bit2)
SR9 (bit1)
SR8 (bit0)
Jul 01, 2003
16
” when power is turned on and the flag status is
page 72 of 89
Boot update completed bit
Reserved
Reserved
Checksum match bit
ID check completed bits
Data reception time out
Reserved
16
Status name
). Also, status register
16
).
•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 code 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.
Update completed
00
01
10
11
Time out
Match
“1”
-
-
-
Definition
Not verified
Verification mismatch
Reserved
Verified
Normal operation
Not Update
Mismatch
“0”
-
-
-