T MS 3 20 VC 54 02
F IX EDĆPO I NT DI GI TAL SI G NAL P RO C ES S O R
SPRS079E – OCTOBER 1998 – REVISED AUGUST 2000
HPI8 timing (continued)
Second Byte
First Byte
Second Byte
HAS
t
su(HBV-DSL)
t
su(HSL-DSL)
t
h(DSL-HBV)
†
HAD
Valid
Valid
‡
t
su(HBV-DSL)
‡
t
h(DSL-HBV)
HBIL
HCS
t
w(DSH)
t
w(DSL)
HDS
t
d(DSH-HYH)
t
d(DSH-HYL)
HRDY
t
en(DSL-HD)
t
d(DSL-HDV2)
t
d(DSL-HDV1)
Valid
t
h(DSH-HDV)R
HD READ
Valid
Valid
t
su(HDV-DSH)
t
v(HYH-HDV)
Valid
t
h(DSH-HDV)W
HD WRITE
CLKOUT
Valid
Valid
t
d(COH-HYH)
†
‡
HAD refers to HCNTL0, HCNTL1, and HR/W.
When HAS is not used (HAS always high)
Figure 35. Using HDS to Control Accesses (HCS Always Low)
63
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