參數(shù)資料
型號(hào): DSP56852E
廠(chǎng)商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述: 16-bit Digital Signal Controllers
中文描述: 16位數(shù)字信號(hào)控制器
文件頁(yè)數(shù): 29/48頁(yè)
文件大小: 731K
代理商: DSP56852E
Serial Peripheral Interface (SPI) Timing
56852 Technical Data, Rev. 8
Freescale Semiconductor
29
4.8 Serial Peripheral Interface (SPI) Timing
Table 4-9 SPI Timing
1
Operating Conditions: V
SS
= V
SSIO
= V
SSA
= 0V, V
DD
= 1.62-1.98V, V
DDIO
= V
DDA
= 3.0–3.6V, T
A
= –40
°
to +120
°
C, C
L
< 50pF, f
op
= 120MHz
1.
Parameters listed are guaranteed by design.
Characteristic
Symbol
Min
Max
Unit
See
Figure
Cycle time
Master
Slave
t
C
25
25
ns
ns
4-17
,
4-18
,
4-19
,
4-20
Enable lead time
Master
Slave
t
ELD
12.5
ns
ns
4-20
Enable lag time
Master
Slave
t
ELG
12.5
ns
ns
4-20
Clock (SCLK) high time
Master
Slave
t
CH
9
12.5
ns
ns
4-17
,
4-18
,
4-19
,
4-20
Clock (SCLK) low time
Master
Slave
t
CL
12
12.5
ns
ns
4-20
Data setup time required for inputs
Master
Slave
t
DS
10
2
ns
ns
4-17
,
4-18
,
4-19
,
4-20
Data hold time required for inputs
Master
Slave
t
DH
0
2
ns
ns
4-17
,
4-18
,
4-19
,
4-20
Access time (time to data active from high-impedance
state)
Slave
t
A
5
15
ns
ns
4-20
Disable time (hold time to high-impedance state)
Slave
t
D
2
9
ns
ns
4-20
Data Valid for outputs
Master
Slave (after enable edge)
t
DV
2
14
ns
ns
4-17
,
4-18
,
4-19
,
4-20
Data invalid
Master
Slave
t
DI
0
0
ns
ns
4-17
,
4-18
,
4-19
,
4-20
Rise time
Master
Slave
t
R
11.5
10.0
ns
ns
4-17
,
4-18
,
4-19
,
4-20
Fall time
Master
Slave
t
F
9.7
9.0
ns
ns
4-17
,
4-18
,
4-19
,
4-20
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