參數(shù)資料
型號: M38503M4
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): 62/86頁
文件大?。?/td> 1193K
代理商: M38503M4
62
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
ID Check
This command checks the ID code. Execute the boot ID check com-
mand as explained here following.
(1) Transfer the
F5
16
command code with the 1st byte.
(2) Transfer addresses A
0
to A
7
, A
8
to A
15
and A
16
to A
23
(
00
16
) of
the 1st byte of the ID code with the 2nd, 3rd and 4th bytes re-
spectively.
(3) Transfer the number of data sets of the ID code with the 5th byte.
(4) The ID code is sent with the 6th byte onward, starting with the 1st
byte of the code.
Fig. 64 Timing for the ID check
ID Code
When the flash memory is not blank, the ID code sent from the pe-
ripheral units and the ID code written in the flash memory are com-
pared to see if they match. If the codes do not match, the command
sent from the peripheral units is not accepted. An ID code contains 8
bits of data. Area is, from the 1st byte, addresses FFD4
16
to FFDA
16
.
Write a program into the flash memory, which already has the ID
code set for these addresses.
Fig. 65 ID code storage addresses
I
D
s
i
z
e
I
D
1
I
D
7
F
5
1
6
D4
16
F
F
1
6
00
16
S
C
L
K
R
x
D
T
x
D
S
R
D
Y
1
(
B
U
S
Y
)
ROM cord Protect control
ID7
ID6
ID5
ID4
ID3
ID2
ID1
FFDB
16
FFDA
16
FFD9
16
FFD8
16
FFD7
16
FFD6
16
FFD5
16
FFD4
16
Address
Interrupt vector area
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