M30222 Datasheet, PDF (227/237 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

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MITSUBISHI MICROCOMPUTERS
M30222 Group
Rev. G
Serial I/O Mode 2 (Flash Memory Version)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Software Commands
Table 1.183 lists software commands. In the standard serial I/O mode 2, erase operations, programs and reading
are controlled by transferring software commands via the RxD0 pin. Standard serial I/O mode 2 adds four trans-
mission speed commands - 9,600, 19,200, 38,400 and 57,600 bps - to the software commands of standard serial
I/O mode 1. Software commands are explained here below.
Table 1.183. Software commands (Standard serial I/O mode Page Read Command
Control
command
2nd
byte
3rd
byte
4th
byte
5th
byte
1
Page read
FF₁₆
Address
(middle)
Address
(high)
Data
output
Data
output
2
Page program
41₁₆
Address
(middle)
Address
(high)
Data input
Data
input
3
Block erase
20₁₆
Address
(middle)
Address
(high)
D0₁₆
4
Erase all
A7₁₆ D0₁₆
unlocked blocks
5
Read status
register
70₁₆
SRD
output
SRD
output
6
Clear status
register
50₁₆
7
Read lock bit
status
71₁₆
Address
(middle)
Address
(high)
Lock bit
data output
8
Lock bit
program
77₁₆
Address
(middle)
Address
(high)
D0₁₆
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
13 Version data
output function
FB₁₆
Version
data
output
Version
data
output
Version
data output
Version
data
output
14
Boot ROM area
FC₁₆ Address Address Data output Data
output function
(middle) (high)
output
15
Read CRC data
FD₁₆
CRC
data
(Low)
CRC
data
(High)
16 Word Read
FE₁₆
Address
(low)
Address
(middle)
17 Word Program
40₁₆
Address
(low)
Address
(middle)
18 Exit
B9₁₆
19 Baud rate 9600
B0₁₆
B0₁₆
20 Baud rate
19200
B1₁₆
B1₁₆
Address
(high)
Address
(high)
21 Baud rate
38400
22 Baud rate
57600
B2₁₆
B3₁₆
B2₁₆
B3₁₆
6th
byte
Data
output
Data
input
Data output
to 259th byte
Data input to
259th byte
When ID is
not verified
Not
acceptable
Not
acceptable
Not
acceptable
Not
acceptable
Acceptable
ID1
ID7
Not
acceptable
Not
acceptable
Not
acceptable
Not
acceptable
Not
acceptable
Acceptable
As
required
Version
data
output
Data
output
Version data
output to 9th
byte
Data output
to 259th byte
Not
acceptable
Acceptable
Not
acceptable
Not
acceptable
Not
acceptable
Not
acceptable
Acceptable
Acceptable
Acceptable
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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