dsp56004 Freescale Semiconductor, Inc, dsp56004 Datasheet - Page 44

• Manufacturer Part Number: dsp56004
• Description: Symphonytm Audio Dsp Family 24-bit Digital Signal Processors
• Manufacturer: Freescale Semiconductor, Inc

Note:
Specifications
Serial Audio Interface (SAI) Timing
SERIAL AUDIO INTERFACE (SAI) TIMING
No.
2-20
111 Minimum Serial Clock Cycle =
112 Serial Clock High Period
113 Serial Clock Low Period
114 Serial Clock Rise/Fall Time
115 Data In Valid to SCKR edge
116 SCKR Edge to Data In Not
117 SCKR Edge to Word Select Out
118 Word Select In Valid to SCKR
119 SCKR Edge to Word Select In
121 SCKT Edge to Data Out Valid
122 SCKT Edge to Word Select Out
123 Word Select In Valid to SCKT
124 SCKT Edge to Word Select In
t
(Data In Set-up Time)
Valid (Data In Hold Time)
Valid (WSR Out Delay Time)
Edge (WSR In Set-up Time)
Not Valid (WSR In Hold Time)
(Data Out Delay Time)
Valid (WST Out Delay Time)
Edge (WST In Set-up Time)
Not Valid (WST In Hold Time)
SAICC
1.
2.
When the Frequency Ratio between Parallel and Serial clocks is 1:4 or greater
When the Frequency Ratio between Parallel and Serial clocks is 1:3 – 1:4
(min)
(C
Characteristics
L
= 50 pF + 2 TTL Loads)
Table 2-11 Serial Audio Interface (SAI) Timing
Freescale Semiconductor, Inc.
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master
master
master
master
master
master
master
master
master
Mode
slave
slave
slave
slave
slave
slave
slave
slave
slave
slave
slave
slave
DSP56004/D, Rev. 3
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1
2
0.5
0.5
0.35
0.35
0.15
Expression
3
T
4
H
t
t
SAICC
SAICC
T
26
14
20
12
12
13
40
19
12
12
8
4
0
+ 34
C
t
t
t
T
SAICC
SAICC
SAICC
C
+ 5
– 8
– 8
Min Max Min Max Min Max
50 MHz
80
65
32
23
32
23
—
—
26
14
—
12
12
—
—
—
—
12
12
4
0
—
—
—
—
—
—
10
—
—
—
—
20
—
—
13
40
44
19
—
—
8
66 MHz
61
51
22
18
22
18
—
—
26
14
—
12
12
—
—
—
—
12
12
4
0
—
—
—
—
—
—
—
—
—
—
20
—
—
13
40
41
19
—
—
8
8
49.4
16.7
14.7
16.7
14.7
42
—
—
26
14
—
12
12
—
—
—
—
12
12
MOTOROLA
81 MHz
4
0
40.2
6.3
—
—
—
—
—
—
—
—
—
—
20
—
—
13
40
19
—
—
8
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns