
2-20
DSP56007/D MOTOROLA
Specifications
Serial Audio Interface (SAI) Timing
SERIAL AUDIO INTERFACE (SAI) TIMING
(C
L
= 50pF + 2 TTL Loads)
Table 2-11
Serial Audio Interface (SAI) Timing
No.
Characteristics
Mode
Expression
50 MHz
66 MHz
81 MHz
Unit
Min Max Min Max Min Max
111 Minimum Serial Clock Cycle =
t
SAICC
(min)
master
slave
4
×
T
C
3
×
T
C
+ 5
80
65
—
—
61
51
—
—
45.5
39.1
—
—
ns
ns
112 Serial Clock High Period
master
slave
0.5
×
t
SAICC
– 8
0.35
×
t
SAICC
32
23
—
—
22
18
—
—
14.7
13.7
—
—
ns
ns
113 Serial Clock Low Period
master
slave
0.5
×
t
SAICC
– 8
0.35
×
t
SAICC
32
23
—
—
22
18
—
—
14.8
13.7
—
—
ns
ns
114 Serial Clock Rise/Fall Time
master
slave
8
0.15
×
t
SAICC
—
—
8
10
—
—
8
8
—
—
8.0
5.9
ns
ns
115 Data In Valid to SCKR edge
(Data In Set-up Time)
master
slave
26
4
26
4
—
—
26
4
—
—
26
4
—
—
ns
ns
116 SCKR Edge to Data In Not
Valid (Data In Hold Time)
master
slave
0
14
0
14
—
—
0
14
—
—
0
14
—
—
ns
ns
117 SCKR Edge to Word Select Out
Valid (WSR Out Delay Time)
master
20
—
20
—
20
—
20
ns
118 Word Select In Valid to SCKR
Edge (WSR In Set-up Time)
slave
12
12
—
12
—
12
—
ns
119 SCKR Edge to Word Select In
Not Valid (WSR In Hold Time)
slave
12
12
—
12
—
12
—
ns
121 SCKT Edge to Data Out Valid
(Data Out Delay Time)
master
slave
1
slave
2
13
40
T
H
+ 34
—
—
—
13
40
44
—
—
—
13
40
41
—
—
—
13
40
39.7
ns
ns
ns
122 SCKT Edge to Word Select Out
Valid (WST Out Delay Time)
master
19
—
19
—
19
—
19
ns
123 Word Select In Valid to SCKT
Edge (WST In Set-up Time)
slave
12
12
—
12
—
12
—
ns
124 SCKT Edge to Word Select In
Not Valid (WST In Hold Time)
slave
12
12
—
12
—
12
—
ns
Note:
1.
When the Frequency Ratio between Parallel and Serial clocks is 1:4 or greater
2.
When the Frequency Ratio between Parallel and Serial clocks is 1:3 – 1:4
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
.
..
Summary of Contents for NXP SYMPHONY DSP56007
Page 82: ......