DS21Q55 Maxim Integrated Products, DS21Q55 Datasheet - Page 86

• 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 4/Receive Channel Monitor Bits (RCM0 to RCM4). RCM0 is the LSB of a 5-bit channel select that
determines which receive DS0 channel data appear in the RDS0M register.
Bits 5 to 7/Unused, must be set to 0 for proper operation
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bits 0 to 7/Receive DS0 Channel Bits (B1 to B8). Receive channel data that has been selected by the receive
channel monitor select register. B8 is the LSB of the DS0 channel (last bit to be received).
B1
—
7
0
7
0
B2
—
RDS0SEL
Receive Channel Monitor Select
76h
RDS0M
Receive DS0 Monitor Register
77h
6
0
6
0
B3
—
5
0
5
0
RCM4
B4
4
0
4
0
86 of 237
RCM3
B5
0
0
3
3
RCM2
B6
2
0
2
0
RCM1
B7
1
0
1
0
RCM0
B8
0
0
0
0