DS21Q42T+ Maxim Integrated Products, DS21Q42T+ Datasheet - Page 68
![IC FRAMER ENHANCED T1 4X 128TQFP](/photos/6/82/68247/128-lqfp_21-0086d_sml.jpg)
DS21Q42T+
Manufacturer Part Number
DS21Q42T+
Description
IC FRAMER ENHANCED T1 4X 128TQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS21Q42T.pdf
(116 pages)
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
Lead free / RoHS Compliant
- Current page: 68 of 116
- Download datasheet (950Kb)
TBOC: TRANSMIT BIT ORIENTED CODE (Address = 07 Hex)
THFR: TRANSMIT HDLC FIFO (Address = 08 Hex)
HDLC7
(MSB)
(MSB)
SBOC
SYMBOL
SYMBOL
HDLC7
HDLC6
HDLC5
HDLC4
HDLC3
HDLC2
HDLC1
HDLC0
HBEN
SBOC
BOC5
BOC4
BOC3
BOC2
BOC1
BOC0
HDLC6
HBEN
POSITION
POSITION
TBOC.7
TBOC.6
TBOC.5
TBOC.4
TBOC.3
TBOC.2
TBOC.1
TBOC.0
THFR.7
THFR.6
THFR.5
THFR.4
THFR.3
THFR.2
THFR.1
THFR.0
HDLC5
BOC5
NAME AND DESCRIPTION
Send BOC. Rising edge triggered. Must be transitioned from a
0 to a
1 transmit the BOC code placed in the BOC0 to BOC5 bits
instead of data from the HDLC controller.
Transmit HDLC & BOC Controller Enable.
0 = source FDL data from the TLINK pin
1 = source FDL data from the onboard HDLC and BOC
controller
BOC Bit 5. Last bit transmitted of the 6–bit code word.
BOC Bit 4.
BOC Bit 3.
BOC Bit 2.
BOC Bit 1.
BOC Bit 0. First bit transmitted of the 6–bit code word.
NAME AND DESCRIPTION
HDLC Data Bit 7. MSB of a HDLC packet data byte.
HDLC Data Bit 6.
HDLC Data Bit 5.
HDLC Data Bit 4.
HDLC Data Bit 3.
HDLC Data Bit 2.
HDLC Data Bit 1.
HDLC Data Bit 0. LSB of a HDLC packet data byte.
HDLC4
BOC4
68 of 116
HDLC3
BOC3
HDLC2
BOC2
HDLC1
BOC1
HDLC0
(LSB)
BOC0
(LSB)
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