參數(shù)資料
型號: M38503MXH
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): 59/86頁
文件大小: 1193K
代理商: M38503MXH
59
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Read Status Register Command
This command reads status information. When the
70
16
command
code is sent with the 1st byte, the contents of the status register
(SRD) specified with the 2nd byte and the contents of status register
1 (SRD1) specified with the 3rd byte are read.
Page Read Command
This command reads the specified page (256 bytes) in the flash
memory sequentially one byte at a time. Execute the page read com-
mand as explained here following.
(1) Transfer the
FF
16
command code with the 1st byte.
(2) Transfer addresses A
8
to A
15
and A
16
to A
23
(
00
16
) with the 2nd
and 3rd bytes respectively.
(3) From the 4th byte onward, data (D
0
D
7
) for the page (256 bytes)
specified with addresses A
8
to A
23
will be output sequentially
from the smallest address first in sync with the fall of the clock.
Fig. 57 Timing for page read
Fig. 58 Timing for reading the status register
Clear Status Register Command
This command clears the bits (SR4
SR5) which are set when the
status register operation ends in error. When the
50
16
command
code is sent with the 1st byte, the aforementioned bits are cleared.
When the clear status register operation ends, the S
RDY1
(BUSY)
signal changes from the
H
to the
L
level.
Fig. 59 Timing for clearing the status register
data0
data255
A
8
A
1
t
5
o
A
1
A
2
6
t
o
3
F
F
1
6
S
C
L
K
R
x
D
T
x
D
S
R
D
Y
1
(
B
U
S
Y
)
S
o
R
t
D
p
u
u
t
S
o
R
u
D
p
1
u
t
t
S
CLK
RxD
TxD
S
RDY1
(BUSY)
7
0
1
6
S
CLK
RxD
TxD
S
RDY1
(BUSY)
50
16
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