DS21Q42T Maxim Integrated Products, DS21Q42T Datasheet - Page 70

• Manufacturer Part Number: DS21Q42T
• Description: IC FRAMER ENHANCED T1 4X 128TQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS21Q42T

• Controller Type: T1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 128-TQFP, 128-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TDC1: TRANSMIT HDLC DS0 CONTROL REGISTER 1 (Address = 92 Hex)
TDC2: TRANSMIT HDLC DS0 CONTROL REGISTER 2 (Address = 93 Hex)
TDS0E
(MSB)
(MSB)
TDB8
SYMBOL
SYMBOL
TDS0M
TDS0E
TDB8
TDB7
TDB6
TDB5
TDB4
TDB3
TDB2
TDB1
TD4
TD3
TD2
TD1
TD0
-
TDB7
-
POSITION
POSITION
TDC1.7
TDC1.6
TDC1.5
TDC1.4
TDC1.3
TDC1.2
TDC1.1
TDC1.0
TDC2.7
TDC2.6
TDC2.5
TDC2.4
TDC2.3
TDC2.2
TDC2.1
TDC2.0
TDS0M
TDB6
NAME AND DESCRIPTION
HDLC DS0 Enable.
0 = use transmit HDLC controller for the FDL.
1 = use transmit HDLC controller for one or more DS0 channels.
Not Assigned. Should be set to 0.
DS0 Selection Mode.
0 = utilize the TD0 to TD4 bits to select which single DS0
channel to use.
1 = utilize the TCHBLK control registers to select which DS0
channels to use.
DS0 Channel Select Bit 4. MSB of the DS0 channel select.
DS0 Channel Select Bit 3.
DS0 Channel Select Bit 2.
DS0 Channel Select Bit 1.
DS0 Channel Select Bit 0. LSB of the DS0 channel select.
NAME AND DESCRIPTION
DS0 Bit 8 Suppress Enable. MSB of the DS0. Set to one to
stop this bit from being used.
DS0 Bit 7 Suppress Enable. Set to one to stop this bit from
being used.
DS0 Bit 6 Suppress Enable. Set to one to stop this bit from
being used.
DS0 Bit 5 Suppress Enable. Set to one to stop this bit from
being used.
DS0 Bit 4 Suppress Enable. Set to one to stop this bit from
being used.
DS0 Bit 3 Suppress Enable. Set to one to stop this bit from
being used.
DS0 Bit 2 Suppress Enable. Set to one to stop this bit from
being used.
DS0 Bit 1 Suppress Enable. LSB of the DS0. Set to one to
stop this bit from being used.
TDB5
TD4
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TDB4
TD3
TDB3
TD2
TDB2
TD1
(LSB)
(LSB)
TDB1
TD0