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TMS320C6421 Datasheet(PDF) 176 Page - Texas Instruments

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Part # TMS320C6421
Description  Fixed-Point Digital Signal Processor
PDF  227 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TMS320C6421 Datasheet(HTML) 176 Page - Texas Instruments

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HCS
HAS
HCNTL[1:0]
HR/W
HHWIL
HSTROBE
(A)(C)
HD[15:0]
(output)
HRDY
(B)
1
2
1
2
1
2
5
6
3
4
3
1
2
1
2
1
2
8
14
15
14
8
7
1stHalf-Word
2ndHalf-Word
6
13
15
A.
referstothefollowinglogicaloperationon
,
,and
:[NOT(
XOR
)]OR
.
HSTROBE
HCSHDS1
HDS2
HDS1
HDS2
HCS
B.
Dependingonthetypeofwriteorreadoperation(HPIDwithoutauto-incrementing;HPIA,HPIC,orHPIDwithauto-
incrementing)andthestateoftheFIFO,transitionson
mayormaynotoccur.
FormoredetailedinformationontheHPIperipheral,seethe
User’sGuide
(literaturenumberSPRUEM9).
C.
reflectstypical
behaviorwhen
assertioniscausedby
or
.
timingrequirementsare
reflectedbyparametersfor
.
HRDY
HCS
HCS
HSTROBE
HDS1
HDS2HCS
HSTROBE
TMS320C642xHostPortInterface(HPI)
TMS320C6421
Fixed-Point Digital Signal Processor
SPRS346B – JANUARY 2007 – REVISED APRIL 2007
Table 6-36. Switching Characteristics for Host-Port Interface Cycles
(see Figure 6-23 through Figure 6-26) (continued)
-400
-500
NO.
PARAMETER
UNIT
-600
MIN
MAX
Applies to HAS used. The conditions
under which HRDY goes high (not
Delay time, HAS low to HRDY
19
td(HASL-HRDYV)
ready) or stays low (ready) for HPI
12
ns
valid
Write or HPI Read is the same as
parameter #5.
Figure 6-23. HPI16 Read Timing (HAS Not Used, Tied High)
Peripheral Information and Electrical Specifications
176
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