IDT 89HPES32NT8BG2 Datasheet
5 of 35 December 17, 2013
Pin Description
The following tables list the functions of the pins provided on the PES32NT8BG2. Some of the functions listed may be multiplexed onto the same
pin. The active polarity of a signal is defined using a suffix. Signals ending with an “N” are defined as being active, or asserted, when at a logic zero
(low) level. All other signals (including clocks, buses, and select lines) will be interpreted as being active, or asserted, when at a logic one (high) level.
Differential signals end with a suffix “N” or “P.” The differential signal ending in “P” is the positive portion of the differential pair and the differential signal
ending in “N” is the negative portion of the differential pair.
Note: Pin [x] of a port refers to a lane. For port 0, PE00RN[0] refers to lane 0, PE00RN[1] refers to lane 1, etc.
Signal Type Name/Description
PE00RN[3:0]
PE00RP[3:0]
I PCI Express Port 0 Serial Data Receive. Differential PCI Express receive pairs for
port 0.
PE00TN[3:0]
PE00TP[3:0]
O PCI Express Port 0 Serial Data Transmit. Differential PCI Express transmit pairs for
port 0.
PE02RN[3:0]
PE02RP[3:0]
I PCI Express Port 2 Serial Data Receive. Differential PCI Express receive pairs for
port 2.
PE02TN[3:0]
PE02TP[3:0]
O PCI Express Port 2 Serial Data Transmit. Differential PCI Express transmit pairs for
port 2.
PE04RN[3:0]
PE04RP[3:0]
I PCI Express Port 4 Serial Data Receive. Differential PCI Express receive pairs for
port 4.
PE04TN[3:0]
PE04TP[3:0]
O PCI Express Port 4 Serial Data Transmit. Differential PCI Express transmit pairs for
port 4.
PE06RN[3:0]
PE06RP[3:0]
I PCI Express Port 6 Serial Data Receive. Differential PCI Express receive pairs for
port 6.
PE06TN[3:0]
PE06TP[3:0]
O PCI Express Port 6 Serial Data Transmit. Differential PCI Express transmit pairs for
port 6.
PE08RN[3:0]
PE08RP[3:0]
I PCI Express Port 8 Serial Data Receive. Differential PCI Express receive pairs for
port 8.
PE08TN[3:0]
PE08TP[3:0]
O PCI Express Port 8 Serial Data Transmit. Differential PCI Express transmit pairs for
port 8.
PE12RN[3:0]
PE12RP[3:0]
I PCI Express Port 12 Serial Data Receive. Differential PCI Express receive pairs for
port 12.
PE12TN[3:0]
PE12TP[3:0]
O PCI Express Port 12 Serial Data Transmit. Differential PCI Express transmit pairs
for port 12.
PE16RN[3:0]
PE16RP[3:0]
I PCI Express Port 16 Serial Data Receive. Differential PCI Express receive pairs for
port 16.
PE16TN[3:0]
PE16TP[3:0]
O PCI Express Port 16 Serial Data Transmit. Differential PCI Express transmit pairs
for port 16.
PE20RN[3:0]
PE20RP[3:0]
I PCI Express Port 20 Serial Data Receive. Differential PCI Express receive pairs for
port 20.
PE20TN[3:0]
PE20TP[3:0]
O PCI Express Port 20 Serial Data Transmit. Differential PCI Express transmit pairs
for port 20.
Table 2 PCI Express Interface Pins
