S912XEG384J3VA Datasheet, PDF (1246/1324 Pages) Freescale Semiconductor, Inc – MC9S12XEP100 Reference Manual Covers MC9S12XE Family

Appendix A Electrical Characteristics
In Table A-29 the timing characteristics for slave mode are listed.
Table A-29. SPI Slave Mode Timing Characteristics
Num C
Characteristic
Symbol
Min
1
D SCK frequency
f_sck
DC
1
D SCK period
t_sck
4
2
D Enable lead time
t_lead
4
3
D Enable lag time
t_lag
4
4
D Clock (SCK) high or low time
t_wsck
4
5
D Data setup time (inputs)
t_su
8
6
D Data hold time (inputs)
t_hi
8
7
D Slave access time (time to data active)
t_a
—
8
D Slave MISO disable time
t_dis
—
9
D Data valid after SCK edge
t_vsck
—
10
D Data valid after SS fall
t_vss
—
11
D Data hold time (outputs)
t_ho
20
12
D Rise and fall time inputs
t_rfi
—
13
D Rise and fall time outputs
t_rfo
—
1. 0.5 t_bus added due to internal synchronization delay
Typ
Max
Unit
—
1/4
f_bus
—
∞
t_bus
—
—
t_bus
—
—
t_bus
—
—
t_bus
—
—
ns
—
—
ns
—
20
ns
—
22
ns
—
28 + 0.5 ⋅ t_bus(1)
ns
—
28 + 0.5 ⋅ t_bus1
ns
—
—
ns
—
8
ns
—
8
ns
1246
MC9S12XE-Family Reference Manual Rev. 1.25
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