IEI Integration ICE-DB-9S - Manual (Page 43)

ICE Module
Page 30
4.1 PEG (PCI Express Graphic)
The PEG Port can utilize COM Express PCIe lanes 16-32 and is suitable to drive a x16
link for an external high-performance PCI Express Graphics card, if implemented on
the COM Express module. It supports a theoretical bandwidth of up to 4 GB/s – twice
the peak bandwidth achievable with AGP 8x. Each lane of the PEG Port consists of a
receiver and transmit differential signal pair designated 'PEG_RX0' (+ and -) to
'PEG_RX15' (+ and -) and correspondingly from 'PEG_TX0' (+ and -) to 'PEG_TX15'
(+ and -). The corresponding signals can be found on the Module connector rows C
and D. The pins of the PEG Port are shared with other functionality like SDVO or DVO
depends of the used chipset. SDVO and PEG are defined on COM Express
specification as “may be used”. Please be sure, your functionality will be supported by
your module vendor.
4.1.1 Signal Description
Table 4-1: PCI Express Signal Descriptions
Pin Signal I/O Description
C52
C53 PEG_RX0+
PEG_RX0- I PEG Port 0. Receive Input differential pair.
D52
D53 PEG_TX0+
PEG_TX0- O PEG Port 0. Transmit Output differential pair.
C55
C56 PEG_RX1+
PEG_RX1- I PEG Port 1. Receive Input differential pair.
D55
D56 PEG_TX1+
PEG_TX1- O PEG Port 1. Transmit Output differential pair.
C58
C59 PEG_RX2+
PEG_RX2- I PEG Port 2. Receive Input differential pair.
D58
D59 PEG_TX2+
PEG_TX2- O PEG Port 2. Transmit Output differential pair.
C61
C62 PEG_RX3+
PEG_RX3- I PEG Port 3. Receive Input differential pair.
D61
D62 PEG_TX3+
PEG_TX3- O PEG Port 3. Transmit Output differential pair.
C65
C66 PEG_RX4+
PEG_RX4- I PEG Port 4. Receive Input differential pair.
D65
D66 PEG_TX4+
PEG_TX4- O PEG Port 4. Transmit Output differential pair.
C68
C69 PEG_RX5+
PEG_RX5- I PEG Port 5. Receive Input differential pair.
D68
D69 PEG_TX5+
PEG_TX5- O PEG Port 5. Transmit Output differential pair.
C71
C72 PEG_RX6+
PEG_RX6- I PEG Port 6. Receive Input differential pair.
D71
D72 PEG_TX6+
PEG_TX6- O PEG Port 6. Transmit Output differential pair.
C74
C75 PEG_RX7+
PEG_RX7- I PEG Port 7. Receive Input differential pair.
D74 PEG_TX7+ O PEG Port 7. Transmit Output differential pair.