mc9s08mm128 Freescale Semiconductor, Inc, mc9s08mm128 Datasheet - Page 38

• Manufacturer Part Number: mc9s08mm128
• Description: S08mm Flexis
• Manufacturer: Freescale Semiconductor, Inc

Preliminary Electrical Characteristics
2.12
Table 21
38
1
2
3
4
No.
Numbers in this column identify elements in
All timing is shown with respect to 20% V
assumes slew rate control disabled and high drive strength enabled for SPI output pins.
Time to data active from high-impedance state.
Hold time to high-impedance state.
and
10
11
12
13
1
2
3
4
5
6
7
8
9
SPI Characteristics
1
Figure 12
Operating frequency
SPSCK period
Slave MISO disable time
Enable lead time
Enable lag time
Clock (SPSCK) high or low time
Data setup time (inputs)
Data hold time (inputs)
Slave access time
Data valid (after SPSCK edge)
Data hold time (outputs)
Rise time
Fall time
through
Characteristic
Figure 15
3
4
describe the timing requirements for the SPI system.
2
Master
Master
Master
Master
Master
Master
Master
Master
Master
Output
Output
DD
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Input
Input
Table 21. SPI Timing
Figure 12
and 70% V
t
Symbol
WSPSCK
t
SPSCK
t
t
Lead
t
t
t
t
t
t
f
Lag
t
t
t
HO
RO
t
SU
SU
dis
FO
through
op
t
t
HI
HI
RI
FI
a
v
DD
, unless noted; 100 pF load on all SPI pins. All timing
Figure
f
t
t
Bus
cyc
cyc
Min
1/2
1/2
15
15
25
—
—
—
—
—
—
—
—
/2048
0
2
4
1
1
0
0
0
15.
– 30
– 30
1024 t
t
t
cyc
cyc
f
f
2048
Max
Bus
Bus
25
25
25
25
—
—
—
—
—
—
—
—
—
—
—
—
1
1
– 25
– 25
/2
/4
cyc
Freescale Semiconductor
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
C
D
D
D
D
D
D
D
D
D
D
D
D
D