mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 553

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

In Table K-3. the timing characteristics for slave mode are listed.
Freescale Semiconductor
Num
1
0.5t
10
11
12
13
1
1
2
3
4
5
6
7
8
9
bus
added due to internal synchronization delay
C
D
D
D
D
D
D
D
D
D
D
D
D
D
D
SCK Frequency
SCK Period
Enable Lead Time
Enable Lag Time
Clock (SCK) High or Low Time
Data Setup Time (Inputs)
Data Hold Time (Inputs)
Slave Access Time (time to data
Slave MISO Disable Time
Data Valid after SCK Edge
Data Valid after SS fall
Data Hold Time (Outputs)
Rise and Fall Time Inputs
Rise and Fall Time Outputs
active)
Characteristic
Table K-3. SPI Slave Mode Timing Characteristics
MC9S12VR Family Reference Manual, Rev. 2.2
Preliminary - Subject to Change Without Notice
Symbol
t
t
t
t
f
t
wsck
t
t
vsck
lead
t
t
t
vss
sck
sck
t
t
lag
t
dis
su
ho
rfo
hi
rfi
a
Min
DC
20
—
—
—
—
—
—
4
4
4
4
8
8
Typ
—
—
—
—
—
—
—
—
—
—
—
—
—
—
28
28
SPI Electrical Specifications
+
+
Max
0.5 t
0.5 t
1
20
22
—
—
—
—
—
—
∞
8
8
1
1
/
4
⋅
⋅
bus
bus
Unit
f
t
t
t
t
bus
bus
ns
ns
ns
ns
ns
ns
ns
ns
ns
bus
bus
bus
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