MC9S12E256 Datasheet, PDF (584/602 Pages) Freescale Semiconductor, Inc – HCS12 Microcontrollers

Appendix A Electrical Characteristics
In Table A-18 the timing characteristics for slave mode are listed.
Table A-18. SPI Slave Mode Timing Characteristics
Num C
Characteristic
Symbol
Min
Typ
1
P SCK Frequency
1
P SCK Period
2
D Enable Lead Time
3
D Enable Lag Time
4
D Clock (SCK) High or Low Time
5
D Data Setup Time (Inputs)
6
D Data Hold Time (Inputs)
7
D Slave Access Time (time to data active)
8
D Slave MISO Disable Time
9
D Data Valid after SCK Edge
10
D Data Valid after SS fall
11
D Data Hold Time (Outputs)
12
D Rise and Fall Time Inputs
13
D Rise and Fall Time Outputs
1 _{tbus added due to internal synchronization delay}
f_sck
DC
—
t_sck
4
—
t_lead
4
—
t_lag
4
—
t_wsck
4
—
t_su
8
—
t_hi
8
—
t_a
—
—
t_dis
—
—
t_vsck
—
—
t_vss
—
—
t_ho
20
—
t_rfi
—
—
t_rfo
—
—
Max
1/4
∞
—
—
—
—
—
20
22
30 + t_bus1
30 + t_bus1
—
8
8
Unit
f_bus
t_bus
t_bus
t_bus
t_bus
ns
ns
ns
ns
ns
ns
ns
ns
ns
MC9S12E256 Data Sheet, Rev. 1.08
584
Freescale Semiconductor