dsp56852 Freescale Semiconductor, Inc, dsp56852 Datasheet - Page 29

• Manufacturer Part Number: dsp56852
• Description: 56800e 16-bit Digital Signal Controllers Digital Signal Controller
• Manufacturer: Freescale Semiconductor, Inc

4.8 Serial Peripheral Interface (SPI) Timing
Freescale Semiconductor
Operating Conditions: V
Cycle time
Master
Slave
Enable lead time
Master
Slave
Enable lag time
Master
Slave
Clock (SCLK) high time
Master
Slave
Clock (SCLK) low time
Master
Slave
Data setup time required for inputs
Master
Slave
Data hold time required for inputs
Master
Slave
Access time (time to data active from high-impedance
state)
Slave
Disable time (hold time to high-impedance state)
Slave
Data Valid for outputs
Master
Slave (after enable edge)
Data invalid
Master
Slave
Rise time
Master
Slave
Fall time
Master
Slave
1. Parameters listed are guaranteed by design.
SS
Characteristic
= V
SSIO
= V
SSA
= 0V, V
DD
Table 4-9 SPI Timing
56852 Technical Data, Rev. 8
= 1.62-1.98V, V
DDIO
Symbol
t
t
= V
t
t
ELG
t
t
t
ELD
t
t
CH
DS
DH
t
t
DV
t
t
CL
DI
C
A
D
R
F
DDA
= 3.0–3.6V, T
1
Min
12.5
12.5
12.5
12.5
25
25
12
10
—
—
—
—
—
—
—
—
9
2
0
2
5
2
0
0
A
= –40° to +120°C, C
Max
11.5
10.0
9.7
9.0
15
14
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
9
2
Serial Peripheral Interface (SPI) Timing
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
L
< 50pF, f
4-17, 4-18,
4-17, 4-18,
4-17, 4-18,
4-17, 4-18,
4-17, 4-18,
4-17, 4-18,
4-17, 4-18,
4-17, 4-18,
4-19,
4-19,
4-19,
4-19,
4-19,
4-19,
4-19,
4-19,
Figure
op
See
4-20
4-20
4-20
4-20
4-20
= 120MHz
4-20
4-20
4-20
4-20
4-20
4-20
4-20
4-20
29