Rainbow Electronics ATmega163L - Manual (Page 136)

ATmega163(L)
136
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
1 = lock bit 1
2 = lock bit 2
3 = Boot Lock Bit01
4 = Boot Lock Bit02
5 = Boot Lock Bit11 6 = Boot Lock Bit12
7 = CKSEL0 Fuse
8 = CKSEL1 Fuse
9 = CKSEL2 Fuse
A = CKSEL3 Fuse
B= BODEN Fuse
C= BODLEVEL Fuse
D= BOOTRST Fuse
E= BOOTSZ0 Fuse
F= BOOTSZ1 Fuse
Serial Programming Characteristics
Figure 88. Serial Programming Timing
Read Signature Byte
0011 0000 xxxx xxxx xxxx xxbb oooo oooo Read Signature Byte o at address
b.
Write Fuse Bits
1010 1100 1010 0000 xxxx xxxx CB 11 A987 Set bits C- A, 9 - 7 = ’0’ to program,
‘1’ to unprogram
Write Fuse High Bits
1010 1100 1010 1000 xxxx xxxx 1111 1FED Set bits F - D = ’0’ to program, ‘1’ to
unprogram
Read Fuse Bits
0101 0000 0000 0000 xxxx xxxx CB xx A987 Read Fuse bits. ’0’ = programmed,
‘1’ = unprogrammed
Read Fuse High Bits
0101 1000 0000 1000 xxxx xxxx xxxx 1FED Read Fuse high bits. ’0’ = pro-
grammed, ‘1’ = unprogrammed
Read Calibration Byte
0011 1000 xxxx xxxx 0000 0000 oooo oooo Read Signature Byte o at address
b.
Table 60. Serial Programming Instruction Set (Continued)
Instruction Instruction Format Operation
Byte 1 Byte 2 Byte 3 Byte4
MOSI
MISO
SCK
t
OVSH
t
SHSL
t
SLSH
t
SHOX
t
SLIV