M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 338

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

M
R
R
18.8 Status Register
1
e
E
Table 18.6 Status Register
. v
6
J
SRD register
• D
• The FMR07 bit (SR5) and FMR06 bit (SR4) are set to “0” by executing the clear status register command.
• When the FMR07 bit (SR5) or FMR06 bit (SR4) is set to "1", the program and block erase command are not accepted.
18.8.1 Sequence Status (SR7 and FMR00 Bits )
18.8.2 Erase Status (SR5 and FMR07 Bits)
18.8.3 Program Status (SR4 and FMR06 Bits)
0
C
Bits in the
2
9
SR7 (D
SR6 (D
SR5 (D
SR4 (D
SR3 (D
SR2 (D
SR1 (D
SR0 (D
The status register indicates the operating status of the flash memory and whether or not erase or pro-
gram operation is successfully completed. The FMR00, FMR06, and FMR07 bits in the FMR0 register
indicate the status of the status register.
Table 18.6 lists the status register.
In EW mode 0, the status register can be read in the following cases:
The sequence status indicates the flash memory operating status. It is set to “0” (busy) while the auto-
program and auto-erase operation is being executed and “1” (ready) as soon as these operations are
completed. This bit indicates “0” (busy) in erase-suspend mode.
Refer to 18.8.4 Full Status Check.
Refer to 18.8.4 Full Status Check.
2 /
0 .
B
7
8
0
0
(1) Any even address in the user ROM area is read after writing the read status register command
(2) Any even address in the user ROM area is read from when the program or block erase command is
to D
0
G
4
J
executed until when the read array command is executed.
7
a
o r
0 -
. n
0
7
6
5
4
3
2
1
0
u
: Indicates the data bus which is read out when executing the read status register command.
)
)
)
)
)
)
)
)
2
p
3
0
, 1
0
(
M
Bits in the
2
register
0
1
FMR00
FMR07
FMR06
FMR0
0
6
7
C
2 /
page 318
, 8
M
1
6
Reserved
Program status
Reserved
Reserved
Reserved
Reserved
Sequence status
Erase status
C
Status name
2 /
f o
8
3
) B
8
5
Completed normally
Completed normally
Busy
"0"
-
-
-
-
-
Contents
Terminated by error
Terminated by error
Ready
"1"
-
-
-
-
-
18. Flash Memory Version
Value
reset
after
1
0
0