参数资料
型号: SOUNDBITE
厂商: Freescale Semiconductor
文件页数: 46/68页
文件大小: 0K
描述: BOARD DEMO AUDIO DEVELOPMENT
标准包装: 1
系列: Symphony™ soundBite
主要目的: 音频,音频处理
已用 IC / 零件: DSPB56371
主要属性: 最高 8 通道数字音频
次要属性: USB、I2C、SPI 接口
已供物品: 板,缆线,CD
Serial Host Interface (SHI) I 2 C Protocol Timing
SS
(Input)
SCK (CPOL = 0)
(Input)
24
25
26
23
26
28
27
24
25
26
26
SCK (CPOL = 1)
(Input)
31
33
33
34
32
MISO
(Output)
MOSI
(Input)
29
MSB
MSB
Valid
30
36
29
LSB
LSB
Valid
30
37
HREQ
(Output)
Figure 12. SPI Slave Timing (CPHA = 1)
13
Serial Host Interface (SHI) I 2 C Protocol Timing
Table 21. SHI I 2 C Protocol Timing
Standard I 2 C*
No.
Characteristics 1
Symbol/
Expression
Standard
Min Max
Fast-Mode
Min Max
Unit
44
44
45
46
47
48
49
50
51
SCL clock frequency
SCL clock cycle
Bus free time
Start condition set-up time
Start condition hold time
SCL low period
SCL high period
SCL and SDA rise time
SCL and SDA fall time
F SCL
T SCL
T BUF
T SUSTA
T HD;STA
T LOW
T HIGH
TR
TF
10
4.7
4.7
4.0
4.7
4.0
100
5
5
2.5
1.3
0.6
0.6
1.3
1.3
400
5
5
kHz
μ s
μ s
μ s
μ s
μ s
μ s
ns
ns
DSP56371 Data Sheet, Rev. 4.1
46
Freescale Semiconductor
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