2.7 DS320PR412-421EVM Global Controls
shows the DS320PR412, DS320PR421, SN75LVPE5412 and SN75LVPE5421 EVM global controls
that affect all devices on the board.
Table 2-7. EVM Global Controls
COMPONENT
NAME
FUNCTION OR DESCRIPTION
J1
DS320PR412-0 VCC
Pins 1-2 : PCIe Connector VCC
Pins 2-3:
Regulator 3.3V
J2
DS320PR412-1 VCC
Pins 1-2 : PCIe Connector VCC
Pins 2-3:
Regulator 3.3V
J3
DS320PR421-2 VCC
Pins 1-2 : PCIe Connector VCC
Pins 2-3:
Regulator 3.3V
J4
DS320PR421-3 VCC
Pins 1-2 : PCIe Connector VCC
Pins 2-3:
Regulator 3.3V
J5
PCIe JTAG TRST
1-2: Edge Finger to PCIe-B
3-4 Edge Finger to PCIe A + B
5-6 Edge Finger to PCIe-A
J6
PCIe JTAG TCK
1-2: Edge Finger to PCIe-B
3-4 Edge Finger to PCIe A + B
5-6 Edge Finger to PCIe-A
J7
PCIe TDI
1-2: Edge Finger to PCIe-B
3-4 Edge Finger to PCIe A + B
5-6 Edge Finger to PCIe-A
J8
PCIe TDO
1-2: Edge Finger to PCIe-B
3-4 Edge Finger to PCIe A + B
5-6 Edge Finger to PCIe-A
J9
PCIe TMS
1-2: Edge Finger to PCIe-B
3-4 Edge Finger to PCIe A + B
5-6 Edge Finger to PCIe-A
J10
Board Regulator 3.3-V
Output
Pin 1 : Board 3.3V
Pin 2: GND
J11
Board 12-V Supply
Pin 1 : Board 12V
Pin 2: GND
JMP7
MUX SEL
1-2 : PCIe Edge Finger to PCIe-B
2-3: PCIe Edge Finger to PCIe-A
JMP8
Redriver PD
1-2 : Power Down
2-3: Normal Operation
JMP17
I2C Interface Sel
1-2 : USB2ANY
2-3: Aardvark
JMP18
CLK Buffer Enable
1-2 : Disabled
2-3: Enabled
JMP19
CLK Buffer Input Sel
1-2 : CLKIN1
2-3: CLKIN0
JMP20
CLK Buffer Ref. Out
1-2 : Enabled
2-3: Disabled
Description
DS320PR412-421EVM User's Guide
7
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