TWR-MCF51JE Freescale Semiconductor, TWR-MCF51JE Datasheet - Page 40

• Manufacturer Part Number: TWR-MCF51JE
• Description: TOWER SYSTEM BOARD MCF51JE
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®, Flexis™r
• Type: MCUr

Specifications of TWR-MCF51JE

• Contents: Board
• Data Bus Width: 32 bit
• Interface Type: RS-232, RS-485, Ethernet, CAN, USB
• Silicon Manufacturer: Freescale
• Core Architecture: Coldfire
• Core Sub-architecture: Coldfire V1
• Silicon Core Number: MCF51J
• Silicon Family Name: Flexis - MCF51JE
• Rohs Compliant: Yes
• For Use With/related Products: Freescale Tower System, MCF51JE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Preliminary Electrical Characteristics
3.13
Table 22
1-4
1
2
3
4
No.
Numbers in this column identify elements in
All timing is shown with respect to 20% V
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.
10
11
12
13
1
2
3
4
5
6
7
8
9
and
SPI Characteristics
1
SPSCK period
Slave MISO disable time
Operating frequency
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
Figure 15
Characteristic
through
3
Figure 18
4
2
Preliminary — Subject to Change
DD
Figure 15
and 70% V
Master
Master
Master
Master
Master
Master
Master
Master
Master
Output
Output
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Input
Input
describe the timing requirements for the SPI system.
Table 22. SPI Timing
through
DD
t
Symbol
, unless noted; 100 pF load on all SPI pins. All timing assumes slew
WSPSCK
t
SPSCK
t
t
Lead
t
t
t
t
t
t
f
Lag
t
t
t
HO
RO
t
SU
SU
dis
FO
op
t
t
HI
HI
RI
FI
a
v
Figure
18.
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
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