dspb56011 Freescale Semiconductor, Inc, dspb56011 Datasheet - Page 35

• Manufacturer Part Number: dspb56011
• Description: 24-bit Dvd Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

HOST INTERFACE (HI) TIMING
MOTOROLA
Num
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
HEN/HACK assertion width
HEN/HACK deassertion width
Host data input setup time before HEN/HACK
deassertion
Host data input hold time after HEN/HACK
deassertion
HEN/HACK assertion to output data active from
high impedance
HEN/HACK assertion to output data valid
HEN/HACK deassertion to output data high
impedance
Output data hold time after HEN/HACK
Deassertion
HR/W low setup time before HEN assertion
HR/W low hold time after HEN deassertion
HR/W high setup time to HEN assertion
HR/W high hold time after HEN/HACK deassertion
HOA0–HOA2 setup time before HEN assertion
HOA0–HOA2 Hold Time After HEN Deassertion
DMA HACK assertion to HOREQ deassertion
DMA HACK deassertion to HOREQ assertion
Note: Active low lines should be “pulled up” in a manner consistent with the AC
•
•
•
•
•
•
•
•
•
CVR, ICR, ISR, RXL read
IVR, RXH/M read
Write
After TXL writes
After RXL reads
Between two CVR, ICR, or ISR reads
For DMA RXL read
For DMA TXL write
All other cases
and DC specifications.
5
6
Table 2-8 Host I/O Timing (All Frequencies)
DSP56011 Technical Data Sheet, Rev. 1
Characteristics
3
2
Preliminary Information
1
1
4
4,5
T
2 T
2 T
2 T
L
T
T
+ T
C
L
Min
2.5
26
13
13
—
—
+ T
C
C
4
3
0
0
3
3
3
0
+ 31
C
0
0
3
C
+ 31
+ 31
+ 31
+ T
C
Host Interface (HI) Timing
H
Max
—
—
—
—
26
—
—
—
—
—
—
—
45
—
—
—
18
—
—
—
—
—
—
Specifications
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2-9