DS21455 Maxim Integrated Products, DS21455 Datasheet - Page 210

• Manufacturer Part Number: DS21455
• Description: Network Controller & Processor ICs Quad E1-T1-J1 Single -Chip Transceiver (S
• Manufacturer: Maxim Integrated Products

Specifications of DS21455

• Product: Framer
• Number Of Transceivers: 4
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 328 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: BGA

33. USER-PROGRAMMABLE OUTPUT PINS
The DS21455/DS21458 provide four user-programmable output pins. The pins are automatically cleared
to zero at power-up or as a reset of a hardware- or software-issued reset.
Register Name:
Register Description:
Register Address:
Bit #
Name
Default
Bit 0/Unused, must be set to zero for proper operation.
Bit 1/Unused, must be set to zero for proper operation.
Bit 2/Unused, must be set to zero for proper operation.
Bit 3/Unused, must be set to zero for proper operation.
Bits 4 to 7/Receive Level Threshold Bits (RLT0 to RLT3).
RLT3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
RLT2
RLT3
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
7
0
RLT1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
RLT2
CCR4
Common Control Register 4
73h
6
0
RLT0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
RLT1
5
0
Greater than -2.5
Less than -37.5
Receive Level
-10.0
-12.5
-15.0
-17.5
-20.0
-22.5
-25.0
-27.5
-30.0
-32.5
-35.0
(dB)
-2.5
-5.0
-7.5
RLT0
4
0
210 of 270
—
3
0
—
2
0
—
1
0
—
0
0