Usb Device Only; Module Reset; Module / So-Dimm Signal Characteristics - Digi ConnectCore 9C Hardware Reference Manual

USB Device only

M o d u l e r e s e t
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M o d u l e / S O - D I M M s i g n a l c h a r a c t e r i s t i c s
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The USB Device interface only requires an external PHY. The USB signals are
multiplexed with GPIOs.
On the Digi development board, these functions are lost:
Serial Port D: TXDD, RXDD, RTSD#, AND CTSD# on GPIO[44], GPIO[45],

GPIO[46], and GPIO[47]
Serial Port C: RTSC# and CTSC# on GPIO[42] and GPIO[43]

User LED3 and LED4 on GPIO[48] and GPIO[49]

SO-DIMM pin Signal name
48 DATA- / GPIO[43]
52 DATA+ / GPIO[42]
47 OE / GPIO[44]
45 RCV / GPIO[45]
43 RXD+ / GPIO[46]
41 RXD- / GPIO[47]
96 SPD / GPIO[49]
98 SUSP / GPIO[48]
The module reset pin is on the module SO-DIMM connector, P3 — pin 105, signal
RST#.
Active low signal.

An ADM811S voltage supervisor is provided to reset the ConnectCore 9C module

at any time the power phases out. If +3.3V power supply dips below 2.93 volts,
the ADM811S asserts and holds the reset signal.
The ADM811S asserts the hard reset signal, causing the entire system to go
into reset. Manual reset input is wired to ADM811S from JTAG header P2.
The minimum pulse width for reset signal is 10s.

All signal directions are referenced as into or out of the ConnectCore 9C and
Note:
Wi-9C modules.
M O D U L E S P E C I F I C A T I O N S
I/O Description
I/O USB VM
I/O USB VP
O USB OE
I USB RCV
I/O USB RXP/EMUN
I USB RXM (unidirectional only)
O USB SPD
O USB SUSP

Module reset

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