Figure 1. SPI Timing Requirements in
Master Mode
Figure 2. SPI Timing Requirements in Slave
Mode
Table 1. SPI Timing Characteristics and
Requirements(1)
Symbol |
Parameter |
Conditions |
Min. |
Typ. |
Max. |
Units |
tSCK |
SCK
period |
Master |
|
84 |
|
ns |
tSCKW |
SCK
high/low width |
Master |
- |
0.5*tSCK |
- |
tSCKR |
SCK
rise time(2) |
Master |
- |
- |
- |
tSCKF |
SCK
fall time(2) |
Master |
- |
- |
- |
tMIS |
MISO
setup to SCK |
Master |
- |
29 |
- |
tMIH |
MISO
hold after SCK |
Master |
- |
8 |
- |
tMOS |
MOSI
setup SCK |
Master |
- |
tSCK/2 -
16 |
- |
tMOH |
MOSI
hold after SCK |
Master |
- |
16 |
- |
tSSCK |
Slave
SCK Period |
Slave |
1*tCLK_APB |
- |
- |
tSSCKW |
SCK
high/low width |
Slave |
0.5*tSSCK |
- |
- |
tSSCKR |
SCK
rise time(2) |
Slave |
- |
- |
- |
tSSCKF |
SCK
fall time(2) |
Slave |
- |
- |
- |
tSIS |
MOSI
setup to SCK |
Slave |
tSSCK/2 -
19 |
- |
- |
tSIH |
MOSI
hold after SCK |
Slave |
tSSCK/2 -
5 |
- |
- |
tSSS |
SS setup to SCK |
Slave |
PRELOADEN=1 |
2*tCLK_APB +
tSOS |
- |
- |
PRELOADEN=0 |
tSOS+7 |
- |
- |
tSSH |
SS hold
after SCK |
Slave |
tSIH -
4 |
- |
- |
tSOS |
MISO
setup SCK |
Slave |
- |
tSSCK/2 -
20 |
- |
tSOH |
MISO
hold after SCK |
Slave |
- |
20 |
- |
tSOSS |
MISO
setup after SS low |
Slave |
- |
16 |
- |
tSOSH |
MISO
hold after SS high |
Slave |
- |
11 |
- |
Notes:
- 1.These values are based on simulation. These values are not covered by test
limits in production.
- 2.See I/O Pin Characteristics.