參數(shù)資料
型號: A40MX04-VQG80A
元件分類: FPGA
英文描述: FPGA, 6000 GATES, PQFP80
封裝: PLASTIC, VQFP-80
文件頁數(shù): 5/78頁
文件大?。?/td> 515K
代理商: A40MX04-VQG80A
40MX and 42MX Automotive FPGA Families
v3.0
1-9
Table 1-3 Test Access Port Descriptions
Port
Description
TMS
(Test
Mode
Select)
Serial input for the test logic control bits. Data is captured on the rising edge of the test logic clock (TCK)
TCK (Test Clock Input) Dedicated test logic clock used serially to shift test instruction, test data, and control inputs on the rising edge
of the clock, and serially to shift the output data on the falling edge of the clock. The maximum clock frequency
for TCK is 20 MHz
TDI (Test Data Input)
Serial input for instruction and test data. Data is captured on the rising edge of the test logic clock
TDO
(Test
Data
Output)
Serial output for test instruction and data from the test logic. TDO is set to an Inactive Drive state (high
impedance) when data scanning is not in progress
Table 1-4 Supported BST Public Instructions
Instruction
IR Code [2:0]
Instruction Type
Description
EXTEST
000
Mandatory
Allows the external circuitry and board-level interconnections to
be tested by forcing a test pattern at the output pins and
capturing test results at the input pins
SAMPLE/PRELOAD
001
Mandatory
Allows a snapshot of the signals at the device pins to be
captured and examined during operation
HIGH Z
101
Optional
Tristates all I/Os to allow external signals to drive pins. Please
refer to the IEEE Standard 1149.1 specification for details
CLAMP
110
Optional
Allows state of signals driven from component pins to be
determined from the Boundary-Scan Register. Please refer to
the IEEE Standard 1149.1 specification for details
BYPASS
111
Mandatory
Enables the bypass register between the TDI and TDO pins. The
test data passes through the selected device to adjacent devices
in the test chain
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相關代理商/技術參數(shù)
參數(shù)描述
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