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© MiMOMax 2013 Four Wire Audio
Interface Manual
8
PRE FIRMWARE VERSION 3.00 CONSIDERATIONS
8.1
LED
I
NDICATION
Only the LEDs in the following diagram (Power, HSSI and COM) provide an indication of
operation. Audio Port LEDs do NOT provide any indication in products with firmware pre
version 3.00.
Power LED (orange)
HSSI LED (green)
COM LED (green)
Four Wire Audio Interface Front IO
Power LED (orange): On when power applied. Off when no power is applied or a power fail
condition exists.
HSSI LED (green): Nominally off, flashing on to indicate HSSI port activity (both transmit and
receive). Note In certain modes the HSSI port is continuously active, as is the case when
audio channels are configured for static or fixed operation.
COM LED (green): Nominally off, flashing on to indicate COM port activity (both transmit and
receive).
8.2
A
UDIO
P
ORT
O
PERATION
For pre version 3.00 firmware the operating modes of the Audio Ports are as follows.
Audio Port
Operating Modes
One
7 channel mode ONLY in either static or dynamic operation.
Two
7 channel mode ONLY in either static or dynamic operation.
Three
7 channel mode ONLY in either static or dynamic operation.
Four
7 channel mode ONLY in either static or dynamic operation.
Five
3 and 7 channel modes in either static or dynamic operation.
Fixed channel mode (no UART).
Six
3 and 7 channel modes in either static or dynamic operation.
Notable differences compared to version 3.00 and later are:
1. Only a single Fixed Channel is supported and the utilised port is different.
2. The ports utilised for 3 channel mode are different.
