ATmega88PA Automotive Atmel Corporation, ATmega88PA Automotive Datasheet - Page 319

• Manufacturer Part Number: ATmega88PA Automotive
• Manufacturer: Atmel Corporation

29.6
9223B–AVR–09/11
SPI Timing Characteristics
See
Table 29-7.
Notes:
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
Atmel ATmega48PA/88PA/168PA [Preliminary]
Figure 29-3
Description
SCK period
SCK high/low
Rise/Fall time
Setup
Hold
Out to SCK
SCK to out
SCK to out high
SS low to out
SCK period
SCK high/low
Rise/Fall time
Setup
Hold
SCK to out
SCK to SS high
SS high to tri-state
SS low to SCK
1. In SPI Programming mode the minimum SCK high/low period is:
2. All DC Characteristics contained in this datasheet are based on simulation and character-
- 2 t
- 3 t
ization of other AVR microcontrollers manufactured in the same process technology. These
values are preliminary values representing design targets, and will be updated after charac-
terization of actual silicon.
SPI Timing Parameters
CLCL
CLCL
and
(1)
for f
for f
Figure 29-4
CK
CK
< 12MHz
> 12MHz
Mode
Master
Master
Master
Master
Master
Master
Master
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
for details.
Min.
4
2
10
t
20
20
ck
t
t
ck
ck
Typ
See
50% duty cycle
3.6
10
10
0.5
10
10
15
15
10
Table 19-5
t
sck
Max
1600
ns
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