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89HPES10T4G2 Datasheet(PDF) 7 Page - Integrated Device Technology |
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89HPES10T4G2 Datasheet(HTML) 7 Page - Integrated Device Technology |
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7 / 30 page  7 of 30 August 10, 2011 IDT 89HPES10T4G2 Data Sheet JTAG_TDO O JTAG Data Output. This is the serial data shifted out from the boundary scan logic or JTAG Controller. When no data is being shifted out, this signal is tri-stated. JTAG_TMS I JTAG Mode. The value on this signal controls the test mode select of the boundary scan logic or JTAG Controller. JTAG_TRST_N I JTAG Reset. This active low signal asynchronously resets the boundary scan logic and JTAG TAP Controller. An external pull-up on the board is recommended to meet the JTAG specification in cases where the tester can access this signal. However, for systems running in functional mode, one of the following should occur: 1) actively drive this signal low with control logic 2) statically drive this signal low with an external pull-down on the board Signal Type Name/Description REFRES0 I/O Port 0 External Reference Resistor. Provides a reference for the Port 0 SerDes bias currents and PLL calibration circuitry. A 3 kOhm +/- 1% resis- tor should be connected from this pin to ground. REFRES2 I/O Port 2 External Reference Resistor. Provides a reference for the Port 2 SerDes bias currents and PLL calibration circuitry. A 3 kOhm +/- 1% resis- tor should be connected from this pin to ground. REFRES4 I/O Port 4 External Reference Resistor. Provides a reference for the Port 4 SerDes bias currents and PLL calibration circuitry. A 3 kOhm +/- 1% resis- tor should be connected from this pin to ground. REFRES6 I/O Port 6 External Reference Resistor. Provides a reference for the Port 6 SerDes bias currents and PLL calibration circuitry. A 3 kOhm +/- 1% resis- tor should be connected from this pin to ground. VDDCORE I Core VDD. Power supply for core logic. VDDI/O I I/O VDD. LVTTL I/O buffer power supply. VDDPEA I PCI Express Analog Power. Serdes analog power supply (1.0V). VDDPEHA I PCI Express Analog High Power. Serdes analog power supply (2.5V). VDDPETA I PCI Express Transmitter Analog Voltage. Serdes transmitter analog power supply (1.0V). VSS I Ground. Table 7 Power, Ground, and SerDes Resistor Pins Signal Type Name/Description Table 6 Test Pins (Part 2 of 2) |
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