1.0 Functional Description
RC96V24DP
1.2 Technical Specifications
Single Device Data/Modem Data Pump
1-6
D96V24DSA
1.2.6 Voice Mode
Transmit Voice.
Transmit voice samples can be sent to the modem digital-to-
analog converter (DAC) from the host through the transmit data buffer.
Receive Voice.
Received voice samples from the modem analog-to-digital
converter (ADC) can be read by the host from the receive data buffer.
1.2.7 Asynchronous Conversion
Asynchronous mode is selected by the ASYNC bit. The asynchronous character
format is 1 start bit, 5 to 8 data bits (WDSZ bits), an optional parity bit (PARSL
and PEN bits), and 1 or 2 stop bits (STB bit). Valid character size, including all
bits, is 7, 8, 9, 10 or 11 bits per character.
Signalling Rate Range.
Signalling rate range is selectable by the EXOS bit:
•
Basic range: +1% to -2.5%
•
Extended overspeed range: +2.3% to -2.5%
Break.
Break is handled as described in V.22 bis.
Table 1-3. RTS-CTS Response Times
Configuration
Turn On
Time
Turn Off
Time
Data Modes
V.22 bis, V.22, and Bell 212A (CC bit = 0)
≤ 2 ms
≤ 2 ms
V.22 bis, V.22, and Bell 212A (CC bit =1)
270 ms
≤ 2 ms
V.21 and Bell 103
2-5 ms
10 ms
V.23 (RC96V24DP and RC2324DPL only)
11 ms
≤ 2 ms
Fax Modes (RC96V24DP only)
Echo Protector Tone Disabled (NV25 = 1)
V.29 (All speeds)
253 ms
≤ 2 ms
V.27 4800
898 ms
≤ 2 ms
V.27 2400
1133 ms
9 ms
V.21
20 ms
4 ms
Echo Protector Tone Enabled (NV25 = 0)
V.29 (All speeds)
253 ms
≤ 2 ms
V.27 4800
1103 ms
≤ 2 ms
V.27 2400
1338 ms
9 ms
V.21
3095 ms
4 ms
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