3-62
DSP56367
MOTOROLA
Specifications
Serial Host Interface (SHI) I
2
C Protocol Timing
3.13
SERIAL HOST INTERFACE (SHI) I
2
C PROTOCOL TIMING
Table 3-20 SHI I
2
C Protocol Timing
No.
Characteristics
1,2,3
Symbol/
Expression
Standard Mode
4
Fast Mode
5
Unit
Min
Max
Min
Max
Tolerable spike width on SCL or SDA
—
Filters bypassed
—
0
—
0
ns
Narrow filters enabled
—
50
—
50
ns
Wide filters enabled
—
100
—
100
ns
171
SCL clock frequency
F
SCL
—
100
—
400
kHz
171
SCL clock cycle
T
SCL
10
—
2.5
—
µ
s
172
Bus free time
T
BUF
4.7
—
1.3
—
µ
s
173
Start condition set-up time
T
SU;STA
4.7
—
0.6
—
µ
s
174
Start condition hold time
T
HD;STA
4.0
—
0.6
—
µ
s
175
SCL low period
T
LOW
4.7
—
1.3
—
µ
s
176
SCL high period
T
HIGH
4.0
—
1.3
—
µ
s
177
SCL and SDA rise time
T
R
—
1000
20 + 0.1
×
C
b
300
ns
178
SCL and SDA fall time
T
F
—
300
20 + 0.1
×
C
b
300
ns
179
Data set-up time
T
SU;DAT
250
—
100
—
ns
180
Data hold time
T
HD;DAT
0.0
—
0.0
0.9
µ
s
181
DSP clock frequency
F
DSP
Filters bypassed
10.6
—
28.5
—
MHz
Narrow filters enabled
11.8
—
39.7
—
MHz
Wide filters enabled
13.1
—
61.0
—
MHz
182
SCL low to data out valid
T
VD;DAT
—
3.4
—
0.9
µ
s
183
Stop condition set-up time
T
SU;STO
4.0
—
0.6
—
µ
s
184
HREQ in deassertion to last SCL edge
(HREQ in set-up time)
t
SU;RQI
0.0
—
0.0
—
ns
186
First SCL sampling edge to HREQ output
deassertion
T
NG;RQO
ns
Filters bypassed
2
×
T
C
+ 30
—
46.7
—
46.7
Narrow filters enabled
2
×
T
C
+ 120
—
136.7
—
136.7
Wide filters enabled
2
×
T
C
+ 208
—
224.7
—
224.7
Summary of Contents for DSP56367
Page 16: ...xvi MOTOROLA CONTENTS Paragraph Number Title Page Number ...
Page 22: ...xxii MOTOROLA List of Figures Figure Number Title Page Number ...
Page 26: ...xxvi MOTOROLA List of Tables Table Number Title Page Number ...
Page 148: ...4 6 DSP56367 MOTOROLA Design Considerations PLL Performance Issues ...
Page 248: ...9 30 DSP56367 MOTOROLA Serial Host Interface SHI Programming Considerations ...
Page 306: ...10 58 DSP56367 MOTOROLA Enhanced Serial Audio Interface ESAI ESAI Initialization Examples ...
Page 389: ...Bootstrap ROM Contents MOTOROLA DSP56367 A 15 end ...
Page 390: ...A 16 DSP56367 MOTOROLA Bootstrap ROM Contents ...
Page 432: ...C 8 DSP56367 MOTOROLA JTAG BSDL ...
Page 484: ...D 52 DSP56367 MOTOROLA Programmer s Reference ...
Page 490: ...E 6 DSP56367 MOTOROLA Power Consumption Benchmark ...
Page 516: ...F 26 DSP56367 MOTOROLA IBIS Model ...
Page 522: ...Index 6 MOTOROLA Index ...
Page 523: ......