Vc-20-Mr2 Connector Signals; Vc-20-Mr2 - Digital Voice Systems VC-20-MR2 User Manual

D V S
IGITAL OICE YSTEMS,
The Speech Compression Specialists
3.3

VC-20-MR2 Connector Signals

Name
+5v
-5v
DESLNCE
DINRS
DTMF_DAT
DTMF_DET
ECHO
ENSLNCE
FMDE
FMEN
FS
GND
GND Anlg
HD_SD
LOST
RATE
RESX
RUN
RXCK
RXD
RXD0
RXD1
TXCK
TXD
VAD
VCC
VFRO
VRXI
3.4 VC-20-MR2 Connector Signals
VC-20 AMBE™ Vocoder Board User's Manual
I
NC.
Dir Description
Pwr. Analog +5v +/- 10%
Pwr. Analog -5v +/- 10%
I Decoder silence control (Active Low)
I Reset Signal (Active High)
O DTMF Tone Data
O DTMF Tone Detected Flag (Active High)
I Echo Cancellor Enable (Active Low)
O Encoder Silence Detected (Active Low)
I Decoder frame flag (Active High)
I Encoder frame flag (Active High)
I Frame Steal Flag (Active Low)
Pwr. Digital Ground
Pwr. Analog Ground
I Enable Soft-decision Decoding (Active Low)
I Lost speech frame detected flag (Active High)
I Rate selection pin. (High : 4.8bps., Low : 2.4bps.)
O Internal Reset Status (Active Low)
O Run Status Signal (Active High)
I Receive data bit clock (4.8/2.4 kHz)
I Receive data I channel (MSB)
I Receive data I channel (LSB)
I Receive data I channel
I Transmit data bit clock (4.8/2.4 kHz)
O Transmit data I channel
I Voice/Silence Detection Enable (Active Low)
Pwr. Digital +5v +/- 5%
O Analog speech output signal
I Analog speech input signal
Section 6 – Advanced Features
page 11