MEGA128CAN Datasheet, PDF (341/413 Pages) ATMEL Corporation – Microcontroller WITH 128K BYTES OF ISP FLASH AND CAN CONTROLLER

AT90CAN128
Table 135. Serial Programming Instruction Set (Continued)
Instruction Format
Instruction
Byte 1
Byte 2
Byte 3
Read Extended
Fuse Bits
0101 0000 0000 1000 xxxx xxxx
Read Calibration
Byte
0011 1000 000x xxxx 0000 0000
Poll RDY/BSY
1111 0000 0000 0000 xxxx xxxx
Note:
a = address high bits
b = address low bits
H = 0 - Low byte, 1 - High Byte
o = data out
i = data in
x = don’t care
Byte4
oooo oooo
oooo oooo
xxxx xxxo
Operation
Read Extended Fuse bits. “0” = pro-grammed, “1”
= unprogrammed. See Table 124 on page 326 for
details.
Read Calibration Byte
If o = “1”, a programming operation is still busy.
Wait until this bit returns to “0” before applying
another command.
4250E–CAN–12/04
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