DS21FF42 Maxim Integrated Products, DS21FF42 Datasheet - Page 72

• Manufacturer Part Number: DS21FF42
• Description: IC FRAMER T1 4X4 16CH 300-BGA
• Manufacturer: Maxim Integrated Products

Specifications of DS21FF42

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

THIR: TRANSMIT HDLC INFORMATION (Address = 06 Hex)
NOTE:
The TUDR bit is latched and will be cleared when read.
TBOC: TRANSMIT BIT ORIENTED CODE (Address = 07 Hex)
(MSB)
(MSB)
SBOC
SYMBOL
SYMBOL
TEMPTY
–
TFULL
TUDR
HBEN
SBOC
BOC5
BOC4
BOC3
BOC2
BOC1
BOC0
–
–
–
–
–
HBEN
–
POSITION
POSITION
TBOC.7
TBOC.6
TBOC.5
TBOC.4
TBOC.3
TBOC.2
TBOC.1
TBOC.0
THIR.7
THIR.6
THIR.5
THIR.4
THIR.3
THIR.2
THIR.1
THIR.0
BOC5
–
NAME AND DESCRIPTION
NAME AND DESCRIPTION
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Not Assigned. Could be any value when read.
Transmit FIFO Empty. A real–time bit that is set high
when the FIFO is empty.
Transmit FIFO Full. A real–time bit that is set high when
the FIFO is full.
Transmit FIFO Underrun. Set when the transmit FIFO
unwantedly empties out and an abort is automatically sent.
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.
BOC4
–
72 of 114
BOC3
–
TEMPTY
BOC2
TFULL
BOC1
TUDR
(LSB)
(LSB)
BOC0