DS21552L+ Maxim Integrated Products, DS21552L+ Datasheet - Page 39

• Manufacturer Part Number: DS21552L+
• Description: IC TXRX T1 1-CHIP 5V 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21552L+

• Function: Single-Chip Transceiver
• Interface: E1, HDLC, J1, T1
• Number Of Circuits: 1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: DSX-1 and CSU Line Build-Out Generator, HDLC Controller, In-Band Loop Code Generator and Detector
• Product: Framer
• Number Of Transceivers: 1
• Data Rate: 64 Kbps
• Supply Voltage (max): 3.465 V
• Supply Voltage (min): 3.135 V
• Supply Current (max): 75 mA (Typ)
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Ic Interface Type: Parallel, Serial
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 100
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

CCR4: COMMON CONTROL REGISTER 4 (Address=11 Hex)
SYMBOL
(MSB)
RSRE
RFSA1
RPCSI
TPCSI
TIRFS
RSRE
THSE
RFE
RFF
RPCSI
POSITION
CCR4.7
CCR4.6
CCR4.5
CCR4.4
CCR4.3
CCR4.2
CCR4.1
CCR4.0
RFSA1
NAME AND DESCRIPTION
Receive Side Signaling Re–Insertion Enable. See Section 10.2 for details.
0 = do not re–insert signaling bits into the data stream presented at the RSER pin
1 = reinsert the signaling bits into data stream presented at the RSER pin
Receive Per–Channel Signaling Insert. See Section 10.2 for more details.
0 = do not use RCHBLK to determine which channels should have signaling re–inserted
1 = use RCHBLK to determine which channels should have signaling re–inserted
Receive Force Signaling All Ones. See Section 10.2 for more details.
0 = do not force extracted robbed–bit signaling bit positions to a one
1 = force extracted robbed–bit signaling bit positions to a one
Receive Freeze Enable. See Section 10.2 for details.
0 = no freezing of receive signaling data will occur
1 = allow freezing of receive signaling data at RSIG (and RSER if CCR4.7 = 1).
Receive Force Freeze. Freezes receive side signaling at RSIG (and RSER if
CCR4.7=1); will override Receive Freeze Enable (RFE). See Section 10.2 for details.
0 = do not force a freeze event
1 = force a freeze event
Transmit Hardware Signaling Insertion Enable. See Section 10.2 for details.
0 = do not insert signaling from the TSIG pin into the data stream presented at the
TSER pin
1 = insert signaling from the TSIG pin into data stream presented at the TSER pin
Transmit Per–Channel Signaling Insert. See Section 10.2 for details.
0 = do not use TCHBLK to determine which channels should have signaling inserted
from TSIG
1 = use TCHBLK to determine which channels should have signaling inserted from
TSIG
Transmit Idle Registers (TIR) Function Select. See Section 2.1 for timing details.
0 = TIRs define in which channels to insert idle code
1 = TIRs define in which channels to insert data from RSER (i.e., Per-Channel
Loopback function)
RFE
39 of 137
RFF
THSE
TPCSI
TIRFS
(LSB)