TR5-Lite User Manual
38
June 20, 2018
SPFA_TXDISABLE
Turns off and disables the transmitter output 2.5V
PIN_BC26
SPFA_TXFAULT
Transmitter fault
2.5V
PIN_BD26
Table 2-18
SFP+ B Pin Assignments, Schematic Signal Names, and Functions
Schematic
Signal Name
Description
I/O Standard
Stratix V GX
Pin Number
SFPB_TX_p
Transmiter data
1.4-V PCML
PIN_AV6
SFPB_TX_n
Transmiter data
1.4-V PCML
PIN_AV5
SFPB_RX_p
Receiver data
1.4-V PCML
PIN_BA4
SFPB_RX_n
Receiver data
1.4-V PCML
PIN_BA3
SPFB_LOS
Signal loss indicator
2.5V
PIN_AJ23
SPFB_MOD0_PRSNT_n Module present
2.5V
PIN_AK23
SPFB_MOD1_SCL
Serial 2-wire clock
2.5V
PIN_AR25
SPFB_MOD2_SDA
Serial 2-wire data
2.5V
PIN_AP24
SPFB_RATSEL0
Rate select 0
2.5V
PIN_AJ22
SPFB_RATSEL1
Rate select 1
2.5V
PIN_AH22
SPFB_TXDISABLE
Turns off and disables the transmitter output 2.5V
PIN_AU25
SPFB_TXFAULT
Transmitter fault
2.5V
PIN_AU24
2
2
.
.
1
1
1
1
P
P
C
C
I
I
E
E
x
x
p
p
r
r
e
e
s
s
s
s
The TR5-Lite development board is designed to fit entirely into a PC motherboard with x8 or x16
PCI Express slot. Utilizing built-in transceivers on a Stratix V GX device, it is able to provide a
fully integrated PCI Express-compliant solution for multi-lane (x1, x4, and x8) applications. With
the PCI Express hard IP block incorporated in the Stratix V GX device, it will allow users to
implement simple and fast protocol, as well as saving logic resources for logic application.
presents the pin connection established between the Stratix V GX and PCI Express.
The PCI Express interface supports complete PCI Express Gen1 at 2.5Gbps/lane, Gen2 at
5.0Gbps/lane, and Gen3 at 8.0Gbps/lane protocol stack solution compliant to PCI Express base
specification 3.0 that includes PHY-MAC, Data Link, and transaction layer circuitry embedded in
PCI Express hard IP blocks.
The power of the board can be sourced entirely from the PCI Express edge connector when installed
into a PC motherboard. It is strongly recommended that users connect the PCIe external power
connector to 6-pin 12V DC power connector in the TR5-Lite to avoid FPGA damage due to