Receive v.54 host algorithm figure 5.4a – Rainbow Electronics DS3134 User Manual

Page 68

DS3134

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Receive V.54 Host Algorithm Figure 5.4A

Set Up the
DS0 Channel
Search

Toggle VRST

Wait for
SLBP = 1

VTO = 1?

Place DS0
Channels into
Loopback

Yes

Wait for
SLBP = 1

Take DS0
Channels out
of Loopback

v54host

SLBP is a status bit that is reported
in the SV54 register (see Section 4.3)

VRST is a control bit that is in the Receive
Port Control Register (see Section 5.2)

VTO is a status bit that is in the Receive
Port Control Register (see Section 5.2)

SLBP is a status bit that is reported
in the SV54 register (see Section 4.3)

DS0 channels can be configured to search
for the V.54 loop pattern via the Receive
Layer 1 Configuration Register (see Section 5.3)

NOTES

ALGORITHM

DS0 channels can be placed into loopback
via the Receive Layer 1 Configuration Register
(see Section 5.3)

DS0 channels can be taken out of loopback
via the Receive Layer 1 Configuration Register
(see Section 5.3)