SM320C6414-EP_16 Datasheet, PDF (75/93 Pages) Texas Instruments – FIXED-POINT DIGITAL SIGNAL PROCESSORS

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NO.
15
t_{d(HSTBH-HDHZ)}
16
t_d(HSTBL-HDV)
SM320C6414-EP, SM320C6415-EP, SM320C6416-EP
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SGUS043D – MAY 2003 – REVISED SEPTEMBER 2008
PARAMETER
Delay time, HSTROBE high to HD high impedance
Delay time, HSTROBE low to HD valid (HPI16 only)
–50xEP
MIN
MAX
12
4P + 8
UNIT
ns
ns
HAS
1
HCNTL[1:0]
1
HR/W
1
HHWIL
HSTROBE^†
2
2
2
3
1
2
1
2
1
2
4
3
HCS
HD[15:0] (output)
HRDY
15
7
9
6
1st half-word
8
15
16
9
2nd half-word
(1) HSTROBE refers to the following logical operation on HCS, HDS1, and HDS2: [NOT(HDS1 XOR HDS2)] OR HCS.
Figure 5-28. HPI16 Read Timing (HAS Not Used, Tied High)
HAS^†
19
10
11
HCNTL[1:0]
19
11
10
10
HR/W
10
HHWIL
HSTROBE^‡
HCS
11
11
3
18
11
10
11
10
4
18
15
15
7
9
16
9
HD[15:0] (output)
1st half-word
6
2nd half-word
8
HRDY
(1) For correct operation, strobe the HAS signal only once per HSTROBE active cycle.
(2) HSTROBE refers to the following logical operation on HCS, HDS1, and HDS2: [NOT(HDS1 XOR HDS2)] OR HCS.
Figure 5-29. HPI16 Read Timing (HAS Used)
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PARAMETER MEASUREMENT INFORMATION
75