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參數(shù)資料
| 型號： | SCANPSC110FLMQB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SCAN Bridge Hierarchical and Multidrop Addressable JTAG Port (IEEE1149.1 System Test Support) |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, CQCC28 |
| 封裝： | LCC-28 |
| 文件頁數(shù)： | 11/29頁 |
| 文件大?。?/td> | 459K |
| 代理商： | SCANPSC110FLMQB |
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Level 1 Protocol
(Continued)
Level 2 Protocol
Once the SCANPSC110F Bridge has been successfully ad-
dressed and selected, its internal registers may be accessed
via Level-2 Protocol. Level-2 Protocol is compliant to IEEE
Std. 1149.1 TAP protocol with one exception: if the
’PSC110F is selected via the Broadcast or Multi-Cast ad-
dress, TDO
will always be TRI-STATED. (The TDO
buffer
must be implemented this way to prevent bus contention.)
Upon being selected, (i.e., the ’PSC110F Selection controller
transitions from the Wait-For-Address state to one of the Se-
lected states), each of the local scan ports (LSP
, LSP
2
,
LSP
) remains parked in one of the following four TAP Con-
troller states: Test-Logic-Reset, Run-Test/Idle, Pause-DR or
Pause-IR and the active scan chain will consist of: TDI
B
through the instruction register (or the IDCODE register) and
out through TDO
B
.
TDI
B
→
Instruction Register
→
TDO
B
The UNPARK instruction (described later) is used to insert
one or more local scan ports into the active scan chain.
Table 4 describes which local ports are inserted into the
chain, and in what order.
LEVEL 2 INSTRUCTION TYPES
There are two types of instructions (reference Table 5):
DS100327-8
FIGURE 7. Broadcast Addressing: Address Loaded into Instruction Register
DS100327-9
FIGURE 8. Multi-Cast Addressing: Address Loaded into Instruction Register
S
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| SCANPSC110FSC | 功能描述:特定功能邏輯 SCAN JTAG Port RoHS:否 制造商:Texas Instruments 產(chǎn)品: 系列:SN74ABTH18502A 工作電源電壓:5 V 封裝 / 箱體:LQFP-64 封裝:Tube |
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| SCANSTA101_06 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Low Voltage IEEE 1149.1 STA Master |
| SCANSTA101SM | 功能描述:接口 - 專用 RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
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