Host-port interface timing (continued) – Motorola TMS320C6711D User Manual
Page 90

TMS320C6711D
FLOATINGĆPOINT DIGITAL SIGNAL PROCESSOR
SPRS292 − OCTOBER 2005
90
POST OFFICE BOX 1443
•
HOUSTON, TEXAS 77251−1443
HOST-PORT INTERFACE TIMING (CONTINUED)
1st halfword
2nd halfword
5
17
5
13
12
13
12
4
14
3
2
1
2
1
2
1
2
1
2
1
2
1
HAS
HCNTL[1:0]
HR/W
HHWIL
HSTROBE†
HCS
HD[15:0] (input)
HRDY
3
† HSTROBE refers to the following logical operation on HCS, HDS1, and HDS2: [NOT(HDS1 XOR HDS2)] OR HCS.
Figure 44. HPI Write Timing (HAS Not Used, Tied High)
1st half-word
2nd half-word
5
17
5
13
12
13
12
4
14
3
11
10
11
10
11
10
11
10
11
10
11
10
HAS†
HCNTL[1:0]
HR/W
HHWIL
HSTROBE‡
HCS
HD[15:0] (input)
HRDY
19
19
18
18
† For correct operation, strobe the HAS signal only once per HSTROBE active cycle.
‡ HSTROBE refers to the following logical operation on HCS, HDS1, and HDS2: [NOT(HDS1 XOR HDS2)] OR HCS.
Figure 45. HPI Write Timing (HAS Used)
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