- 您现在的位置：买卖IC网 > PDF目录68777 > 1215E TEST/JTAG SUPPORT|CMOS|QFP|48PIN|PLASTIC PDF资料下载
参数资料
| 型号： | 1215E |
| 英文描述： | TEST/JTAG SUPPORT|CMOS|QFP|48PIN|PLASTIC |
| 中文描述： | 测试/ JTAG支持|的CMOS | QFP封装| 48PIN |塑料 |
| 文件页数： | 5/92页 |
| 文件大小： | 1041K |
| 代理商： | 1215E |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页
Agere Systems Inc.
13
User Manual
April 2001
Advanced Operational Mode
497AE and 1215E Boundary-Scan Master 2
The BSM2 Scan Process (continued)
Jump and Reset Commands (continued)
Reset Command
This command overrides (halts) any current execution
in any mode and internally resets the BSM2. Executing
the Reset command does not activate the TRST* sig-
nal.
The TAP State Tracker will indicate that the BSM2 has
driven the TAP Controllers of the selected/attached B-S
chain to the Test-Logic-Reset TAP Controller state. It is
necessary to synchronize the TAP State Tracker with
the selected/attached B-S chain by running TCK for five
cycles with the TMS signal equal to 1 or by use of the
TRST* signal.
TAP Manual Mode
In the BSM2, it is possible to single step through a scan
sequence in TAP Manual Mode. TAP Manual Mode is
entered by writing a 1 to the MAN bit of the CUTI regis-
ter.
The key to understanding TAP Manual Mode is the fact
that writing the CUTO register not only supplies values
to be driven on TMS, and TDO, but also produces the
clock edge on TCK that causes the values to be driven.
Likewise, reading the CUTO register not only is a
means of capturing the value concurrently available on
the TDI pin, but also produces the clock edge on TCK
that cause the value in question to be captured from the
output of the selected/attached B-S chain.
The CUTO register includes the bits that enable the
operation of the TAP signals of the BSM2. Each TAP
pin, other than TCK, is represented by a bit in the regis-
ter. There is an additional bit operational in the manual
mode only, TDOEM. In this mode, TDOEM controls
enabling/disabling of the TDO output pin.
Control of TCK Pin
While writing (reading) the CUTO register causes an
internal TAP Manual Mode TCK register to go low
(high), this will not have effect on the value of the TCK
pin of the BSM2 unless the pin is enabled for TAP Man-
ual Mode by having the MAN bit of the CUTI register
set. When the BSM2 is in TAP Manual Mode the nor-
mal connection of the TCK pin to the internal TCK gen-
erator (divider of the master clock) is overridden.
In this way the user can preselect the state of the TCK
pin before going to the manual mode by either reading
or writing to the CUTO register. In other words, once
TAP Manual Mode is selected, the user does not need
to worry about toggling TCK as it is done naturally by
reading and writing to CUTO—with the same phase as
defined in
IEEE Std. 1149.1.
Control of TDI, TDO, TMS, and TRST* pins
In TAP Manual Mode, the next values to be driven on
the TDO and TMS pins of the BSM2 are written to the
TDOM and TMSM bits (respectively) of the CUTO reg-
ister. Enabling/disabling of the TDO pin is controlled by
the value written to the TDOEM bit (unless overridden
by the state of the TOEB bit). Likewise a reset of the
TAP Controllers on the selected attached B-S chain is
effected by writing CUTO with the value 1 in the
TRSTB bit. (The use of the TRSTB bit is not restricted
to TAP Manual Mode.)
In TAP Manual Mode, when the CUTO register is read,
the value output from the selected/attached B-S chain
will be found in the TDIM bit of that register.
Data Modification
TDO Inversion
The value of bits from various internal sources (e.g.,
TVO) and driven by the BSM on its TDO output signal
can be inverted before they are scanned into a
selected/attached B-S chain. This is achieved by the
use of the TC bit (CUTI[02]).
The signature analysis register (SAR) can be used to
compress the results of deterministic scan testing as
well as in the case of ATPG. The SAR is selected
through the use of the SSM function. See the descrip-
tion under the headings Signature Analysis for Deter-
ministic Tests, Scan-Sequence Modifier (SSM), and
Programming ATPG and SSM Functions.
Note:
The retimed delay function is not applicable to
scan operation in which the SAR is the target
for data scanned into TDI.
相关PDF资料 |
PDF描述 |
|---|---|
| 1243-TYPE | Uncooled Laser Transmitter |
| 1245-TYPE | Uncooled Laser Transmitter |
| 125-0212-3 | EINBAUSTECKER PUSH PULL 8POL |
| 125-0213-6 | STECKER PUSH PULL 4POL |
| 125-0214-9 | KUPPLUNG PUSH PULL 4POL |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 1215-EN | 制造商:Thomas & Betts 功能描述:INSERT BUSHING--2 |
| 1215F10 | 功能描述:BATT PK 15.0V AA SIZE CARBN ZINC RoHS:否 类别:电池产品 >> 电池组 系列:Eveready® MSDS 材料安全数据表:Nickel Cadmium Battery MSDS 标准包装:1 系列:Cadnica 电池化学:镍镉 可充电:是 电池大小:D 单元数:10 电压 - 额定:12V 容量:4Ah 结构:正面至背面，5 排 x 2 芯电池 端接类型:焊片 尺寸/尺寸:6.42" L x 1.28" W x 4.63" H（163.0mm x 32.6mm x 117.6mm） 重量:3.5 磅（1.6kg） 请注意:- 配用:SY125-ND - BATT NICAD 1.2V D 4000MAH 其它名称:SY125-L025 |
| 1215F2 | 功能描述:BATT PK 3.0V AA SIZE CARBON ZINC RoHS:否 类别:电池产品 >> 电池组 系列:Eveready® MSDS 材料安全数据表:Nickel Cadmium Battery MSDS 标准包装:1 系列:Cadnica 电池化学:镍镉 可充电:是 电池大小:D 单元数:10 电压 - 额定:12V 容量:4Ah 结构:正面至背面，5 排 x 2 芯电池 端接类型:焊片 尺寸/尺寸:6.42" L x 1.28" W x 4.63" H（163.0mm x 32.6mm x 117.6mm） 重量:3.5 磅（1.6kg） 请注意:- 配用:SY125-ND - BATT NICAD 1.2V D 4000MAH 其它名称:SY125-L025 |
| 1215F2X2 | 功能描述:BATT PK 6.0V AA SIZE CARBON ZINC RoHS:否 类别:电池产品 >> 电池组 系列:Eveready® MSDS 材料安全数据表:Nickel Cadmium Battery MSDS 标准包装:1 系列:Cadnica 电池化学:镍镉 可充电:是 电池大小:D 单元数:10 电压 - 额定:12V 容量:4Ah 结构:正面至背面，5 排 x 2 芯电池 端接类型:焊片 尺寸/尺寸:6.42" L x 1.28" W x 4.63" H（163.0mm x 32.6mm x 117.6mm） 重量:3.5 磅（1.6kg） 请注意:- 配用:SY125-ND - BATT NICAD 1.2V D 4000MAH 其它名称:SY125-L025 |
| 1215F2X3 | 功能描述:BATT PK 9.0V AA SIZE CARBON ZINC RoHS:否 类别:电池产品 >> 电池组 系列:Eveready® MSDS 材料安全数据表:Nickel Cadmium Battery MSDS 标准包装:1 系列:Cadnica 电池化学:镍镉 可充电:是 电池大小:D 单元数:10 电压 - 额定:12V 容量:4Ah 结构:正面至背面，5 排 x 2 芯电池 端接类型:焊片 尺寸/尺寸:6.42" L x 1.28" W x 4.63" H（163.0mm x 32.6mm x 117.6mm） 重量:3.5 磅（1.6kg） 请注意:- 配用:SY125-ND - BATT NICAD 1.2V D 4000MAH 其它名称:SY125-L025 |
发布紧急采购，3分钟左右您将得到回复。