DS21FT42 Maxim Integrated Products, DS21FT42 Datasheet - Page 73

• Manufacturer Part Number: DS21FT42
• Description: IC FRAMER T1 4X3 12CH 300-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21FT42

• Controller Type: T1 Framer
• Interface: Parallel/Serial
• Voltage - Supply: 2.97 V ~ 3.63 V
• Current - Supply: 225mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 300-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

THFR: TRANSMIT HDLC FIFO (Address = 08 Hex)
RDC1: RECEIVE HDLC DS0 CONTROL REGISTER 1 (Address = 90 Hex)
HDLC7
RDS0E
(MSB)
(MSB)
SYMBOL
SYMBOL
RDS0M
HDLC7
HDLC6
HDLC5
HDLC4
HDLC3
HDLC2
HDLC1
HDLC0
RDS0E
RD4
RD3
RD2
RD1
RD0
-
HDLC6
-
POSITION
POSITION
THFR.7
THFR.6
THFR.5
THFR.4
THFR.3
THFR.2
THFR.1
THFR.0
RDC1.7
RDC1.6
RDC1.5
RDC1.4
RDC1.3
RDC1.2
RDC1.1
RDC1.0
RDS0M
HDLC5
NAME AND DESCRIPTION
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.
HDLC DS0 Enable.
0 = use receive HDLC controller for the FDL.
1 = use receive HDLC controller for one or more DS0
channels.
Not Assigned. Should be set to 0.
DS0 Selection Mode.
0 = utilize the RD0 to RD4 bits to select which single DS0
channel to use.
1 = utilize the RCHBLK 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.
HDLC4
RD4
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HDLC3
RD3
HDLC2
RD2
HDLC1
RD1
HDLC0
(LSB)
(LSB)
RD0