參數(shù)資料
型號: DSP56721
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
中文描述: SymphonyTM DSP56720 / DSP56721多核音頻處理器
文件頁數(shù): 24/54頁
文件大?。?/td> 671K
代理商: DSP56721
Symphony
TM
DSP56720 / DSP56721 Multi-Core Audio Processors, Rev.1
Freescale Semiconductor
24
Figure 18. SPI Slave Timing Diagram (CPHA = 1)
2.2.2
Serial Host Interface (SHI) I
2
C Protocol Timing
See
Table 12
for SHI I
2
C protocol timing parameters and
Figure 19
for the timing diagram.
Table 12. SHI I
2
C Protocol Timing Parameters
Standard I
2
C
No.
Characteristics
1,2,3,4,5
Symbol/
Expression
Standard
Fast-Mode
Unit
Min
Max
Min
Max
Tolerable Spike Width on SCL or SDA
Filters Bypassed
Very Narrow Filters enabled
Narrow Filters enabled
Wide Filters enabled.
0
10
50
100
0
10
50
100
ns
ns
ns
ns
44
SCL clock frequency
F
SCL
100
400
kHz
44
SCL clock cycle
T
SCL
10
2.5
μ
s
45
Bus free time
T
BUF
4.7
1.3
μ
s
46
Start condition set-up time
T
SUSTA
4.7
0.6
μ
s
SS
(Input)
SCK (CPOL = 0)
(Input)
SCK (CPOL = 1)
(Input)
MISO
(Output)
MOSI
(Input)
HREQ
(Output)
23
24
25
26
26
26
26
25
24
31
33
29
30
37
34
32
29
28
27
33
30
36
MSB
LSB
MSB
Valid
LSB
Valid
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DSPA56720AG SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
DSPA56721AF SymphonyTM DSP56720 / DSP56721 Multi-Core Audio Processors
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