DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 188

• Manufacturer Part Number: DS21Q55
• Description: IC TXRX QUAD T1/E1/J1 SCT 256BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q55

• Function: Transceiver
• Interface: E1, J1, T1
• Number Of Circuits: 4
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 256-BGA
• Includes: BERT Generator and Detector, Dual HDLC Controllers
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -

Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 2/Device Assignment Bits (DA0 to DA2)
Bit 3/Interleave Bus Operation Enable (IBOEN)
Bit 4/Interleave Bus Operation Select (IBOSEL). This bit selects channel or frame interleave mode.
Bits 5, 6/IBO Bus Size Bit 1 (IBS0 to IBS1). Indicates how many devices are on the bus.
Bit 7/Unused, must be set to 0 for proper operation
DA2
IBS1
0
0
0
0
1
1
1
1
0
0
1
1
0 = IBO disabled
1 = IBO enabled
0 = channel interleave
1 = frame interleave
DA1
IBS0
—
7
0
0
0
1
1
0
0
1
1
0
1
0
1
Two devices on bus
Four devices on bus
Eight devices on bus
Reserved for future use
IBS1
DA0
IBOC
Interleave Bus Operation Control Register
C5h
6
0
0
1
0
1
0
1
0
1
Bus Size
IBS0
Device Position on Bus
5
0
IBOSEL
2nd
3rd
4th
5th
6th
7th
8th
1st
4
0
188 of 237
IBOEN
3
0
DA2
2
0
DA1
1
0
DA0
0
0