MEGA128CAN Datasheet, PDF (330/413 Pages) ATMEL Corporation – Microcontroller WITH 128K BYTES OF ISP FLASH AND CAN CONTROLLER

Commands
Table 128. Pin Values Used to Enter Programming Mode
Pin
Symbol
PAGEL
Prog_enable[3]
XA1
Prog_enable[2]
XA0
Prog_enable[1]
BS1
Prog_enable[0]
Value
0
0
0
0
Table 129. XA1 and XA0 Coding
XA1
XA0 Action when XTAL1 is Pulsed
0
0
Load Flash or EEPROM Address (High or low address byte
determined by BS1).
0
1
Load Data (High or Low data byte for Flash determined by BS1).
1
0
Load Command
1
1
No Action, Idle
Parameters
Table 130. Command Byte Bit Coding
Command Byte
Command Executed
1000 0000
Chip Erase
0100 0000
Write Fuse bits
0010 0000
Write Lock bits
0001 0000
Write Flash
0001 0001
Write EEPROM
0000 1000
Read Signature bytes and Calibration byte
0000 0100
Read Fuse and Lock bits
0000 0010
Read Flash
0000 0011
Read EEPROM
Table 131. No. of Words in a Page and No. of Pages in the Flash
Flash Size
Page Size PCWORD No. of Pages PCPAGE
64K words (128K bytes) 128 words PC[6:0]
512
PC[15:7]
PCMSB
15
Table 132. No. of Words in a Page and No. of Pages in the EEPROM
EEPROM Size
Page Size PCWORD No. of Pages PCPAGE
4K bytes
8 bytes
EEA[2:0]
512
EEA[11:3]
EEAMSB
11
330 AT90CAN128
4250E–CAN–12/04