TS7514
RECEIVE CHANNEL PROGRAMMING REGISTER (RPRX REGISTER)
Address
Data
D7 D6 D5 D4 D3 D2 D1 D0
Configuration
P 1 1 1 X X 0 X Low Frequency Wide Band Selected (Figure 7b) (Note 1)
X X 1 X Low Frequency Narrow Band Selected (Figure 7c)
X X X 0 Carrier Level Detector Delay Enabled*
X X X 1 Carrier Level Detector Delay Disabled.
Note 1 : In active tone detection mode (MOD/DTMF = Ø, MC/BC = 1, RTS = 1 see op. modes),
The low frequency wide band is automatically selected for the receive channel, whatever the RPRX register programming value.
After a switch back to modem mode (MOD/DTMF = 1, MC/BC = Ø or 1) the RPRX register indicates again the value programmed
before the active tone detection mode.
INPUT SHIFT REGISTER ACCESS
Figure 5 : 1st Case : Programmation without Data Transmission
1
2
RTS
3
6
4
4
5
9
MC/BC and MOD/DTMF
7
8
TxD or PRD
Figure 6 : 2nd Case : Programmation with TxD During Data Transmission
RTS
MC/BC and
MOD/DTMF
6
11 11
5
10
TxD or PRD
Data
n1
Data
n
D0
D7
Data
n
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