DSP56366 Technical Data, Rev. 3.1
3-38
Freescale Semiconductor
333
HCS hold time after data strobe deassertion
9
—
0.0
—
ns
334
Address (AD7–AD0) setup time before HAS deassertion (HMUX=1)
—
4.7
—
ns
335
Address (AD7–AD0) hold time after HAS deassertion (HMUX=1)
—
3.3
—
ns
336
A10–A8 (HMUX=1), A2–A0 (HMUX=0), HR/W setup time before data
strobe assertion
9
Read
Write
—
0
4.7
—
—
ns
337
A10–A8 (HMUX=1), A2–A0 (HMUX=0), HR/W hold time after data strobe
deassertion
9
—
3.3
—
ns
338
Delay from read data strobe deassertion to host request assertion for “Last
Data Register” read
4
,
5
,
10
T
C
8.3
—
ns
339
Delay from write data strobe deassertion to host request assertion for “Last
Data Register” write
5
,
8
,
10
2
×
T
C
16.7
—
ns
340
Delay from data strobe assertion to host request deassertion for “Last Data
Register” read or write (HROD = 0)
5
,
9
,
10
—
—
19.1
ns
341
Delay from data strobe assertion to host request deassertion for “Last Data
Register” read or write (HROD = 1, open drain Host Request)
5
,
9
,
10
,
11
—
—
300.0
ns
342
Delay from DMA HACK deassertion to HOREQ assertion
For “Last Data Register” read
5
For “Last Data Register” write
5
For other cases
2
×
T
C
+ 19.1
1.5
×
T
C
+ 19.1
35.8
31.6
0.0
—
—
—
ns
343
Delay from DMA HACK assertion to HOREQ deassertion
HROD = 0
5
—
—
20.2
ns
344
Delay from DMA HACK assertion to HOREQ deassertion for “Last Data
Register” read or write
HROD = 1, open drain Host Request
5
,
11
—
—
300.0
ns
1
See Host Port Usage Considerations in the DSP56366 User’s Manual.
2
In the timing diagrams below, the controls pins are drawn as active low. The pin polarity is programmable.
3
V
CC
= 3.3 V
±
0.16 V; T
J
=
–40°C to +110°C, C
L
= 50 pF
4
The read data strobe is HRD in the dual data strobe mode and HDS in the single data strobe mode.
5
The “l(fā)ast data register” is the register at address $7, which is the last location to be read or written in data transfers.
6
This timing is applicable only if a read from the “l(fā)ast data register” is followed by a read from the RXL, RXM, or RXH registers
without first polling RXDF or HREQ bits, or waiting for the assertion of the HOREQ signal.
7
This timing is applicable only if two consecutive reads from one of these registers are executed.
8
The write data strobe is HWR in the dual data strobe mode and HDS in the single data strobe mode.
9
The data strobe is host read (HRD) or host write (HWR) in the dual data strobe mode and host data strobe (HDS) in the single
data strobe mode.
10
The host request is HOREQ in the single host request mode and HRRQ and HTRQ in the double host request mode.
11
In this calculation, the host request signal is pulled up by a 4.7 k
Ω
resistor in the open-drain mode.
Table 3-18 Host Interface (HDI08) Timing
1, 2
(continued)
No.
Characteristics
3
Expression
120 MHz
Unit
Min
Max