M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 247

• Manufacturer Part Number: M30622M4
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

CPU Rewrite Mode (Flash Memory Version)
Table 1.29.2. Definition of each bit in status register
Each bit of
SR7 (bit7)
SR6 (bit6)
SR5 (bit5)
SR4 (bit4)
SR3 (bit3)
SR2 (bit2)
SR1 (bit1)
SR0 (bit0)
Program status (SR4)
Block status after program (SR3)
SRD
The program status informs the operating status of auto write operation to the CPU. When a write
error occurs, it is set to 1.
The program status is reset to 0 when cleared.
When an erase command is in error (which occurs if the command entered after the block erase
command (20
(SR5) are set to 1.
When the program status or erase status = 1, the following commands entered by command write are
not accepted.
Also, in one of the following cases, both SR4 and SR5 are set to 1 (command sequence error):
If excessive data is written (phenomenon whereby the memory cell becomes depressed which results
in data not being read correctly), “1” is set for the program status after-program at the end of the page
write operation. In other words, when writing ends successfully, “80
“90
(1) When the valid command is not entered correctly
(2) When the data entered in the second bus cycle of lock bit program (77
16
(20
entered, read array is assumed and the command that has been set up in the first bus cycle is
canceled.
” is output; and when excessive data is written, “88
16
/D0
Reserved
Block status after program
Reserved
Reserved
Reserved
Write state machine (WSM) status
Erase status
Program status
16
16
) is not the confirmation command (D0
), or erase all unlock blocks (A7
Status name
16
/D0
Terminated in error
Terminated in error
Terminated in error
16
16
) is not the D0
16
), both the program status and erase status
” is output.
Ready
"1"
-
-
-
-
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
16
Definition
16
” is output; when writing fails,
or FF
Terminated normally
Terminated normally
Terminated normally
16
16
. However, if FF
/D0
Mitsubishi microcomputers
M16C / 62 Group
Busy
"0"
16
-
-
-
-
), block erase
16
is
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