mcf51qe128 Freescale Semiconductor, Inc, mcf51qe128 Datasheet - Page 24

• Manufacturer Part Number: mcf51qe128
• Description: Mcf51qe Flexis 32-bit Coldfire? V1 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Electrical Characteristics
3.10.3
Table 14
24
No.
and
10
12
—
11
1
2
3
4
5
6
7
8
9
Figure 18
SPI Timing
C
D
D
D
D
D
D
D
D Slave access time
D Slave MISO disable time
D
D
D
D
Operating frequency
SPSCK period
Enable lead time
Enable lag time
Clock (SPSCK) high or low time
Data setup time (inputs)
Data hold time (inputs)
Data valid (after SPSCK edge)
Data hold time (outputs)
Rise time
Fall time
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Input
Output
Input
Output
through
MCF51QE128 Series Advance Information Data Sheet, Rev. 4
Figure 21
Function
describe the timing requirements for the SPI system.
Table 14. SPI Timing
t
Symbol
WSPSCK
t
SPSCK
t
t
Lead
t
t
t
t
t
f
Lag
t
t
t
HO
RO
SU
dis
FO
op
t
t
HI
RI
FI
a
v
f
t
t
Bus
cyc
cyc
Min
1/2
1/2
15
15
25
—
—
—
—
—
—
—
—
/2048
0
2
4
1
1
0
0
0
– 30
– 30
1024 t
t
t
cyc
cyc
f
f
2048
Max
Bus
Bus
25
25
25
25
—
—
—
—
—
—
—
—
—
—
—
—
1
1
– 25
– 25
/2
/4
Freescale Semiconductor
cyc
t
t
SPSCK
SPSCK
Unit
t
t
t
t
t
t
Hz
Hz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
cyc
cyc
cyc
cyc
cyc
cyc