M37517F8HP Datasheet, PDF (73/98 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

7517 Group
Software Commands
(Standard Serial I/O Mode)
Table 15 lists software commands. In standard serial I/O mode,
erase, program and read are controlled by transferring software
commands via the RxD pin. Software commands are explained
here below.
Table 15 Software commands (Standard serial I/O mode)
Control command
1st byte 2nd byte 3rd byte
transfer
1 Page read
FF16
Address Address
(middle) (high)
4th byte
Data
output
2 Page program
3 Erase all blocks
4 Read status register
5 Clear status register
6 ID code check
4116
A716
7016
5016
F516
Address Address
(middle) (high)
D016
SRD
output
SRD1
output
Data
input
Address Address Address
(low) (middle) (high)
7 Download function
FA16
Size
(low)
Size
(high)
Check-
sum
Version Version Version
8 Version data output function FB16
data
data
data
output output
output
5th byte
Data
output
Data
input
ID size
Data
input
Version
data
output
6th byte
Data
output
Data
input
ID1
To
required
number
of times
Version
data
output
.....
Data
output to
259th byte
Data input
to 259th
byte
To ID7
Version
data output
to 9th byte
When ID is
not verified
Not
acceptable
Not
acceptable
Not
acceptable
Acceptable
Not
acceptable
Acceptable
Not
acceptable
Acceptable
Notes1: Shading indicates transfer from the internal flash memory microcomputer to a programmer. All other data is transferred from an external equipment
(programmer) to the internal flash memory microcomputer.
2: SRD refers to status register data. SRD1 refers to status register 1 data.
3: All commands can be accepted when the flash memory is totally blank.
4: Address high must be “0016”.
Rev.1.01 Aug 02, 2004 page 73 of 96