參數(shù)資料
型號: 951200201
廠商: ATMEL CORP
元件分類: 數(shù)字信號處理外設(shè)
英文描述: 40-BIT, DSP-FLOATING POINT PROCESSOR, QFP256
封裝: MQFP-256
文件頁數(shù): 33/50頁
文件大小: 702K
代理商: 951200201
39
TSC21020F
4153H–AERO–04/07
IEEE 1149.1 Test Access Port
Figure 12. IEEE 1149.1 Test Access Port
Parameter
20 MHz
Frequency
Dependency(1)
Unit
Min
Max
Min
Max
t
TCK TCK Period
50
t
CK
ns
tSTAP TDI, TMS Setup before TCK
High
5
ns
tHTAP TDI, TMS Hold after TCK High
6
ns
t
SSYS System Inputs Setup before
TCK High
7
ns
t
HSYS System Inputs Hold after TCK
High
9
ns
t
TRSTW TRST Pulse Width
200
ns
t
DTDO TDO Delay from TCK Low
15
ns
tDSYS System Outputs Delay from
TCK Low
26
ns
Note:
1. DT = t
CK - 50 ns
System Inputs = PMD47-0, PMACK, PMTS, DMD39-0, DMACK, DMTS, CLKIN,
IRQ3-0, RESET, FLAG3-0, BR.
System Outputs = PMA23-0, PMS1-0, PMRD, PMWR, PMD47-0, PMPAGE,
DMA31-0, DMS3-0, DMRD, DMWR, DMPAGE, FLAG3-0, BG, TIMEXP.
See the IEEE 1149.1 Test Access Port chapter of the ADSP-21020 User's Manual
from Analog Devices for further detail.
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