MC94MX21DVKN3 Freescale, MC94MX21DVKN3 Datasheet - Page 55

• Manufacturer Part Number: MC94MX21DVKN3
• Manufacturer: Freescale

Specifications of MC94MX21DVKN3

• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

1. All the timings for the SSI are given for a non-inverted serial clock polarity (TSCKP/RSCKP = 0) and a non-inverted frame sync
Freescale Semiconductor
Ref
No.
11a
11b
27a
27b
(TFSI/RFSI = 0). If the polarity of the clock and/or the frame sync have been inverted, all the timing remains valid by inverting
the clock signal STCK/SRCK and/or the frame sync STFS/SRFS shown in the tables and in the figures.
15
12
13
14
16
17
18
19
20
21
22
23
24
25
26
28
29
30
31
32
33
34
(Tx) CK high to STXD high
(Tx) CK high to STXD low
(Tx) CK high to STXD high impedance
SRXD setup time before (Rx) CK low
SRXD hold time after (Rx) CK low
(Tx/Rx) CK clock period
(Tx/Rx) CK clock high period
(Tx/Rx) CK clock low period
(Tx) CK high to FS (bl) high
(Rx) CK high to FS (bl) high
(Tx) CK high to FS (bl) low
(Rx) CK high to FS (bl) low
(Tx) CK high to FS (wl) high
(Rx) CK high to FS (wl) high
(Tx) CK high to FS (wl) low
(Rx) CK high to FS (wl) low
(Tx) CK high to STXD valid from high impedance
(Tx) CK high to STXD high
(Tx) CK high to STXD low
(Tx) CK high to STXD high impedance
SRXD setup time before (Rx) CK low
SRXD hole time after (Rx) CK low
SRXD setup before (Tx) CK falling
SRXD hold after (Tx) CK falling
SRXD setup before (Tx) CK falling
SRXD hold after (Tx) CK falling
Table 35. SSI to SSI2 Ports Timing Parameters (Continued)
Parameter
1
Synchronous External Clock Operation (SSI2 Ports)
Synchronous Internal Clock Operation (SSI2 Ports)
External Clock Operation (SSI2 Ports)
MC94MX21 Technical Data, Rev. 1.
Minimum
21.50
90.91
36.36
36.36
10.40
11.00
10.40
11.00
10.40
11.00
10.40
11.00
20.78
0.34
0.34
0.34
9.59
9.59
9.59
9.59
2.52
4.42
0
0
0
0
1.8 V ± 0.1 V
Maximum
17.37
19.70
17.37
19.70
17.37
19.70
17.37
19.70
17.08
17.08
17.08
16.84
0.72
0.72
0.48
–
–
–
–
–
–
–
–
–
–
–
Minimum
21.50
90.91
36.36
36.36
20.78
0.34
0.34
0.34
8.67
9.28
8.67
9.28
8.67
9.28
8.67
9.28
7.86
7.86
7.86
7.86
2.52
4.42
0
0
0
0
3.0 V ± 0.3 V
Maximum
15.88
18.21
15.88
18.21
15.88
18.21
15.88
18.21
15.59
15.59
15.59
15.35
0.72
0.72
0.48
–
–
–
–
–
–
–
–
–
–
–
Specifications
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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