DS21Q42T Maxim Integrated Products, DS21Q42T Datasheet - Page 68

• 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

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)