Datasheet

172
8024A–AVR–04/08
ATmega8HVA/16HVA
SPI Interface Timing Requirements (Slave Mode)
29.8 Programming Characteristics
29.8.1 Serial Programming
Figure 29-2. Serial Programming Timing
Figure 29-3. Serial Programming Waveforms
MISO
(
Data Output)
SCK
(CPOL = 1)
MOSI
(Data Input)
SCK
(CPOL = 0)
SS
MSB LSB
LSBMSB
...
...
10
11 11
1213 14
17
15
9
X
16
M
OSI
M
ISO
SCK
t
OVSH
t
SHSL
t
SLSH
t
SHOX
t
SL
IV
MSB
MSB
LSB
LSB
SERIAL CLOCK INPUT
(SCK)
SERIAL DATA INPUT
(MOSI)
(MISO)
SAMPLE
S
ERIAL DATA OUTPUT