Ampro Corporation COM 830 User Manual

Page 35

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Chapter 3

Signals and Pinout Tables

COM 830

Reference Manual

29

PCIE3_TX+
PCIE3_TX-

PCI Express channel 4, Transmit Output
differential pair

O
PCIE

Supports PCI
Express Base
Specification,
Revision 1.0a

PCIE4_RX+
PCIE4_RX-

PCI Express channel 5, Receive Input
differential pair

I
PCIE

Supports PCI
Express Base
Specification,
Revision 1.0a

PCIE4_TX+
PCIE4_TX-

PCI Express channel 5, Transmit Output
differential pair

O
PCIE

Supports PCI
Express Base
Specification,
Revision 1.0a

PCIE5_RX+
PCIE5_RX-

PCI Express channel 6, Receive Input
differential pair

I
PCIE

Not available.
Used by
onboard Gigabit
Ethernet.

PCIE5_TX+
PCIE5_TX-

PCI Express channel 6, Transmit Output
differential pair

O
PCIE

Not available.
Used by
onboard Gigabit
Ethernet.

PCIE_CLK_RE
F+
PCIE_CLK_RE
F-

PCI Express Reference Clock output for all
PCI Express and PCI Express Graphics
Lanes

O
PCIE

PD 49.9R

Table 3-6. ExpressCard Support Pins Descriptions

Signal

Description

I/O

PU/PD

Comment

EXCD[0..1]_CPPE
#

ExpressCard capable card
request

I
3.3VSB

PU 8k2
3.3VSB

EXCD[0..1]_RST#

(EXCD[0..1]_PER
ST#)

ExpressCard Reset

O 3.3V

PU 10k
3.3V

Table 3-7. LPC Signal Descriptions

Signal

Description

I/O

PU/PD

Comment

LPC_AD[0:3]

LPC multiplexed address, command and
data bus

I/O 3.3V

LPC_FRAME#

LPC frame indicates the start of an LPC
cycle

O 3.3V

LPC_DRQ[0:1]#

LPC serial DMA request

I 3.3V

PU 10k
3.3V

LPC_SERIRQ

LPC serial interrupt

I/O 3.3V

PU 10k
3.3V

LPC_CLK

LPC clock output - 33MHz nominal

O 3.3V

Table 3-5. PCI Express Signal Descriptions [general purpose] (Continued)

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