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Lpc bus – ADLINK Express-IBE2 User Manual

Page 22

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Page 22

Express-IBE2

3.3.8. LPC bus

Signal

Pin

Description

I/O

PU/PD

Comment

LPC_AD[0:3]

B4-B7

LPC multiplexed address, command and data bus

I/O 3.3V

LPC_FRAME#

B3

LPC frame indicates the start of an LPC cycle

O 3.3V

LPC_DRQ0#
LPC_DRQ1#

B8
B9

LPC serial DMA request

I 3.3V

LPC_SERIRQ

A50

LPC serial interrupt

I/O OD 3.3V

PU 8k2 3.3V

LPC_CLK

B10

LPC clock output - 33MHz nominal

O 3.3V

3.3.9. USB

Signal

Pin

Description

I/O

PU/PD

Comment

USB0+
USB0-

A46
A45

USB differential data pairs for Port 0

I/O 3.3VSB

USB 1.1/ 2.0 compliant

USB1+
USB1-

B46
B45

USB differential data pairs for Port 1

I/O 3.3VSB

USB 1.1/ 2.0 compliant

USB2+
USB2-

A43
A42

USB differential data pairs for Port 1

I/O 3.3VSB

USB 1.1/ 2.0 compliant

USB3+
USB3-

B43
B42

USB differential data pairs for Port 2

I/O 3.3VSB

USB 1.1/ 2.0 compliant

USB4+
USB4-

A40
A39

USB differential data pairs for Port 3

I/O 3.3VSB

USB 1.1/ 2.0 compliant

USB5+
USB5-

B40
B39

USB differential data pairs for Port 4

I/O 3.3VSB

USB 1.1/ 2.0 compliant

USB6+
USB6-

A37
A36

USB differential data pairs for Port 5

I/O 3.3VSB

USB 1.1/ 2.0 compliant

USB7+
USB7-

B37
B37

USB differential data pairs for Port 6

I/O 3.3VSB

USB 1.1/ 2.0 compliant

USB_0_1_OC#

B44

USB over-current sense, USB ports 0 and 1. A pull-up
for this line shall be present on the module. An open
drain driver from a USB current monitor on the carrier
board may drive this line low.

I 3.3VSB

PU 10k 3.3VSB

Do not pull high on carrier

USB_2_3_OC#

A44

USB over-current sense, USB ports 2 and 3. A pull-up
for this line shall be present on the module. An open
drain driver from a USB current monitor on the carrier
board may drive this line low.

I 3.3VSB

PU 10k 3.3VSB

Do not pull high on carrier

USB_4_5_OC#

B38

USB over-current sense, USB ports 4 and 5. A pull-up
for this line shall be present on the module. An open
drain driver from a USB current monitor on the carrier
board may drive this line low.

I 3.3VSB

PU 10k 3.3VSB

Do not pull high on carrier

USB_6_7_OC#

A38

USB over-current sense, USB ports 6 and 7. A pull-up
for this line shall be present on the module. An open
drain driver from a USB current monitor on the carrier
board may drive this line low.

I 3.3VSB

PU 10k 3.3VSB

Do not pull high on carrier