參數(shù)資料
型號(hào)： SCANPSC110F
廠商： National Semiconductor Corporation
英文描述： SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port(掃描橋分層多點(diǎn)可設(shè)定地址的JTAG端口)
中文描述： 掃描橋?qū)哟魏投帱c(diǎn)尋址JTAG端口（掃描橋分層多點(diǎn)可設(shè)定地址的的JTAG端口）
文件頁(yè)數(shù)： 5/29頁(yè)
文件大?。?/td> 459K
代理商： SCANPSC110F
Overview of SCANPSC110F Bridge
Functions
(Continued)
In multi-drop scan systems, a scan tester can select indi-
vidual ’PSC110Fs for participation in upcoming scan opera-
tions. ’PSC110F “selection” is accomplished by simulta-
neously
scanning
a
device
address
out
to
multiple
’PSC110Fs. Through an on-chip address matching process,
only those ’PSC110Fs whose statically-assigned address
matches the scanned-out address become selected to re-
ceive further instructions from the scan tester. ’PSC110F se-
lection is done using a “Level-1” protocol, while follow-on in-
structions are sent to selected ’PSC110Fs by using a
“Level-2” protocol.
The
state-machines (see Figure 2 ). The first of these is the
TAP-control state-machine, which is used to drive the
’PSC110Fs scan ports in conformance with the 1149.1 Stan-
dard (see Figure 17 of appendix). The second is the
’PSC110F-selection state-machine (Figure 3). The third
state-machine actually consists of three identical but inde-
pendent state-machines (see Figure 4), one per ’PSC110F
local
scan
port.
Each
of
state-machines allows individual local ports to be inserted
into and removed from the ’PSC110Fs overall scan chain.
’PSC110F
contains
three
distinct
but
coupled
these
scan
port-selection
The ’PSC110F selection state-machine performs the ad-
dress matching which gives the ’PSC110F its multi-drop ca-
pability. That
logic
supports
multi-cast,
and
broadcast.
state-machine implements the chip’s Level-1 protocol.
single-’PSC110F
The
’PSC110F-selection
access,
DS100327-4
FIGURE 2. SCANPSC110F Bridge State Machines
S
www.national.com
5
相關(guān)PDF資料
PDF描述
SCANPSC110 SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support)
SCANPSC110FDMQB SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support)
SCANPSC110FFMQB SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support)
SCANPSC110FLMQB SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support)
SCANSTA101 RES 30K OHM 1/16W 0.1% 0402 SMD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SCANPSC110FDMQB 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support)
SCANPSC110FDMQB WAF 制造商:Texas Instruments 功能描述:
SCANPSC110FDMQB WAF 制造商:Texas Instruments 功能描述:
SCANPSC110FFMQB 制造商:NSC 制造商全稱:National Semiconductor 功能描述:SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support)
SCANPSC110FLMQB 功能描述:IC BRIDGE LCC SCAN MUL JTAG PORT RoHS:否 類別:集成電路 (IC) >> 接口 - 專用 系列:* 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁(yè)面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2
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