M30222 Datasheet, PDF (209/237 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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Specifications in this manual are tentative and subject to change
MITSUBISHI MICROCOMPUTERS
M30222 Group
Rev. G
Serial I/O Mode 1 (Flash Memory Version)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Software Commands
Table 1.79 lists software commands. In the standard serial I/O mode 1, erase operations, programs
and reading are controlled by transferring software commands via the RxD0 pin. Software commands
are explained here below.
Table 1.79. Software commands (Standard serial I/O mode 1)
Control
command
2nd
byte
3rd
byte
4th
byte
5th
byte
6th
byte
When ID is
not verified
1
Page read
FF₁₆
Address Address Data
(middle) (high)
output
Data
output
Data
output
Data output Not
to 259th byte acceptable
2
Page program
41₁₆ Address Address Data input
Data
(middle) (high)
input
Data
input
Data input to
259th byte
Not
acceptable
3
Block erase
20₁₆
Address
(middle)
Address
(high)
D0₁₆
Not
acceptable
4
Erase all
A7₁₆ D0₁₆
unlocked blocks
Not
acceptable
5
Read status
register
70₁₆
SRD
output
SRD
output
Acceptable
6
Clear status
register
50₁₆
Not
acceptable
7
Read lock bit
status
71₁₆
Address Address Lock bit
(middle) (high)
data output
Not
acceptable
8
Lock bit
program
77₁₆
Address
(middle)
Address
(high)
D0₁₆
Not
acceptable
9
Lock bit enable
7A₁₆
10
Lock bit disable 75₁₆
11 ID check
function
12 Download
function
F5₁₆
FA₁₆
Address
(low)
Size
(low)
Address
(middle)
Size
(high)
Address
(high)
Check sum
ID size
Data
input
ID1
ID7
As
required
Not
acceptable
Not
acceptable
Acceptable
Not
acceptable
13 Version data
FB₁₆ Version Version Version
Version Version Version data Acceptable
output function
data
data
data output data
data
output to 9th
output
output
output
output
byte
14
Boot ROM area FC₁₆ Address Address Data output Data
output function
(middle) (high)
output
Data
output
Data output Not
to 259th byte acceptable
15 Read check
data
16 Word Read
17 Word Program
18 Exit
FD₁₆
FE₁₆
40₁₆
B9₁₆
CRC
data
(Low)
Address
(low)
Address
(low)
CRC
data
(High)
Address
(middle)
Address
(middle)
Address
(high)
Address
(high)
Not
acceptable
Not
acceptable
Not
acceptable
Acceptable
Note 1: The shaded areas indicate a transfer from flash MCU to serial programmer. All other data is
transferred from programmer to MCU.
Note 2: SRD to Status Register Data. SRD1 refers to Status Register 1 Data.
Note 3: All commands are accepted if the reset vector is blank.
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