Multitech MT-SMI-DK Development Manual page 15

CHAPTER 2 – UNIVERSAL SOCKET PINOUT
Pin Signal Name
56 –LED FDX
57 –LED ACT
58 –LEDLINK
59 –LEDCOL
60 –LEDSPD
61 VCC
62 MICV
63 AGND
64 SPKR
65 Unused
66 Unused
67 Unused
68 Unused
69 Unused
70 Unused
71 Unused
72 Unused
73 Unused
74 Unused
1 GPIO pins can be configured using the Universal IP AT Commands. Refer to the Universal IP AT Commands
Reference Guide.
2 For MTSMC-H3-MI-IP, MTSMC-EV2-MI-IP, MTSMC-EV2-MI-GP, MTSMC-H5-MI, MTSMC-H5-MI-GP, MTSMC-EV3-
MI and MTSMC-EV-MI-GP only.
15
In/Out Description
O LED Full Duplex (Active Low). LED Output. During normal operation, this pin lights
the FDX LED to indicate a full duplex mode.
O LED Active (Active Low). LED Output. During normal operation, this pin lights the
Activity LED when transmitting or receiving. It flashes at a rate of 50ms high and
50ms low when active.
O LED LINK (Active Low). LED Output. During normal operation, this pin lights the
LINK LED to indicate a good link is detected.
Refer the individual Device Guide for PIN 58 LED Mode details.
O LED Collision (Active Low). LED Output. During normal operation, this pin lights
the COL LED to indicate a collision. It flashes at 50ms high and 50ms low when
active.
O LED Speed (Active Low). LED Output. During normal operation, this pin lights the
SPEED LED to indicate 100Mbps is selected.
PWR DC Input Power. 3.3V or 5VDC power, depending upon the build.
I Single-Ended Microphone. Single-ended microphone input for dial-up
SocketModem speakerphone and TAM functions.
GND Analog Ground. Analog ground is tied common with DGND on the SocketModem.
To minimize potential ground noise issues, connect audio circuit return to AGND.
O Speaker. Dual purpose output for call progress signals or speakerphone functions.
Call Progress signaling on MT5692SMI and MT2492SMI is a square wave output
that can be optionally connected to a low-cost single-ended speaker; e.g., a
sounducer or an analog speaker circuit.
Call progress on the MT9234SMI is an analog output.
Speakerphone Output on the MT5692SMI is under the control of +FCLASS. This is
a single-ended analog output. SPKR is tied directly to the CODEC. One side of a
differential AC output coupled through a 6.8K ohm resistor and capacitor.
N/A Reserved for future use.
N/A Reserved for future use.
N/A Reserved for future use.
N/A Reserved for future use.
N/A Reserved for future use.
N/A Reserved for future use.
N/A Reserved for future use.
N/A Reserved for future use.
N/A Reserved for future use.
N/A Reserved for future use.
Universal Socket Developer Guide