M30622SAFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30622SAFP Datasheet - Page 254

• Manufacturer Part Number: M30622SAFP
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Appendix Standard Serial I/O Mode 1 (Flash Memory Version)
254
Table 1.29.3. Status register 1 (SRD1)
Status Register 1 (SRD1)
SRD1 bits
SR15 (bit7)
SR14 (bit6)
SR13 (bit5)
SR12 (bit4)
SR11 (bit3)
SR10 (bit2)
SR9 (bit1)
SR8 (bit0)
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
Also, status register 1 is cleared by writing the clear status register command (50
Table 1.29.3 gives the definition of each status register 1 bit. “00
and the flag status is maintained even after the reset.
Boot Update Completed Bit (SR15)
Check Sum Consistency Bit (SR12)
ID Check Completed Bits (SR11 and SR10)
Data Reception Time Out (SR9)
This flag indicates whether the control program was downloaded to the RAM or not, using the down-
load function.
This flag indicates whether the check sum matches or not when a program, is downloaded for execu-
tion using the download function.
These flags indicate the result of ID checks. Some commands cannot be accepted without an ID
check.
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.
Boot update completed bit
ID check completed bits
Data receive time out
Checksum match bit
Status name
Reserved
Reserved
Reserved
Update co
Time out
Match
"1"
00
01
10
11
-
-
-
mpleted
16
Not verified
Verification mismatch
Reserved
Verified
Definition
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
” is output when power is turned ON
Normal operation
Not update
Mismatch
"0"
16
-
-
-
).
M16C / 62A Group
Mitsubishi microcomputers
16
).