- 您现在的位置：买卖IC网 > PDF目录11720 > PI7C8154BNAE (Pericom)IC PCI-PCI BRIDGE ASYNC 304-PBGA PDF资料下载
参数资料
| 型号： | PI7C8154BNAE |
| 厂商： | Pericom |
| 文件页数： | 7/114页 |
| 文件大小： | 0K |
| 描述： | IC PCI-PCI BRIDGE ASYNC 304-PBGA |
| 标准包装： | 27 |
| 系列： | * |
| 应用： | * |
| 接口： | * |
| 电源电压： | * |
| 封装/外壳： | 304-BBGA |
| 供应商设备封装： | 304-PBGA（31x31） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
第1页第2页第3页第4页第5页第6页当前第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页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页
PI7C8154B
ASYNCHRONOUS 2-PORT
PCI-to-PCI BRIDGE
Advance Information
Page 104 of 114
JUNE 2008 REVISION 1.1
16.4
BYPASS REGISTER
The required bypass register, a one-bit shift register, provides the shortest path between TDI and
TDO when a bypass instruction is in effect. This allows rapid movement of test data to and from
other components on the board. This path can be selected when no test operation is being
performed on the PI7C8154B.
16.5
BOUNDARY SCAN REGISTER
The boundary-scan register contains a cell for each pin as well as control cells for I/O and the high-
impedance pin. Table 16-2 shows the bit order of the PI7C8154B boundary-scan register. All table
cells that contain “Control” select the direction of bi-directional pins or high-impedance output
pins. When a “1” is loaded into the control cell, the associated pin(s) are high-impedance or
selected as output.
The boundary-scan register is a required set of serial-shiftable register cells, configured in
master/slave stages and connected between each of the PI7C8154B’s pins and on-chip system
logic. The VDD, GND, and JTAG pins are NOT in the boundary-scan chain.
The boundary-scan register cells are dedicated logic and do not have any system function. Data
may be loaded into the boundary-scan register master cells from the device input pins and output
pin-drivers in parallel by the mandatory SAMPLE and EXTEST instructions. Parallel loading takes
place on the rising edge of TCK.
Data may be scanned into the boundary-scan register serially via the TDI serial input pin, clocked
by the rising edge of TCK. When the required data has been loaded into the master-cell stages, it
can be driven into the system logic at input pins or onto the output pins on the falling edge of TCK
state. Data may also be shifted out of the boundary-scan register by means of the TDO serial output
pin at the falling edge of TCK.
16.6
TAP CONTROLLER
The TAP (Test Access Port) controller is a 4-state synchronous finite state machine that controls
the sequence of test logic operations. The TAP can be controlled via a bus master. The bus master
can be either automatic test equipment or a component (i.e., PLD) that interfaces to the TAP. The
TAP controller changes state only in response to a rising edge of TCK. The value of the test mode
state (TMS) input signal at a rising edge of TCK controls the sequence of state changes. The TAP
controller is initialized after power-up by applying a low to the TRST# pin. In addition, the TAP
controller can be initialized by applying a high signal level on the TMS input for a minimum of
five TCK periods.
For greater detail on the behavior of the TAP controller, test logic in each controller state and the
state machine and public instructions, refer to the IEEE 1149.1 Standard Test Access Port and
Boundary-Scan Architecture document (available from the IEEE).
相关PDF资料 |
PDF描述 |
|---|---|
| ADM1025AARQ | IC MONITOR SYS/VOLT 5CH 16QSOP |
| ADUC832BCPZ | IC MCU 62K FLASH ADC/DAC 56LFCSP |
| 31-10 | BNC FRONT MOUNT RECEPT |
| D38999/20JD97SN | CONN RCPT 12POS WALL MNT W/SCKT |
| ADUC848BSZ62-5 | IC FLASH MCU W/16BIT ADC 52MQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PI7C8154BNAE-80 | 功能描述:外围驱动器与原件 - PCI 64B/66MHz 2 Port PCI Bridge RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| PI7C8154BNAI | 制造商:Pericom Semiconductor Corporation 功能描述: |
| PI7C8154BNAIE | 功能描述:外围驱动器与原件 - PCI 64B/66MHz 2 Port PCI Bridge RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| PI7C8154EVB | 功能描述:界面开发工具 64B/66MHz 2 Port PCI Bridge Eval Brd RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| PI7C8154NA-33 | 制造商:PERICOM 功能描述: |
发布紧急采购，3分钟左右您将得到回复。