DS31256 Maxim Integrated Products, DS31256 Datasheet - Page 58

• Manufacturer Part Number: DS31256
• Description: IC CTRLR HDLC 256-CHANNEL 256BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS31256

• Controller Type: HDLC Controller
• Interface: Serial
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 500mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 6-5. Receive V.54 Host Algorithm
Yes
ALGORITHM
Toggle VRST
Set Up the
DS0 Channel
Search
VTO = 1?
Place DS0
Channels into
Loopback
Take DS0
Channels out
of Loopback
SLBP = 1
No
SLBP = 1
Wait for
Wait for
v54host
DS0 channels can be configured to search
for the V.54 loop pattern via the Receive
Layer 1 Configuration Register (Section 6.3)
VRST is a control bit that is in the Receive
Port Control Register (Section 6.2)
SLBP is a status bit that is reported
in the SV54 register (Section 5.3)
VTO is a status bit that is in the Receive
Port Control Register (Section 6.2)
DS0 channels can be placed into loopback
via the Receive Layer 1 Configuration Register
(Section 6.3)
SLBP is a status bit that is reported
in the SV54 register (Section 5.3)
DS0 channels can be taken out of loopback
via the Receive Layer 1 Configuration Register
(Section 6.3)
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NOTES