参数资料
型号: DS21FF44N
厂商: DALLAS SEMICONDUCTOR
元件分类: Digital Transmission Controller
英文描述: DATACOM, FRAMER, PBGA300
封装: 27 X 27 MM, BGA-300
文件页数: 41/110页
文件大小: 526K
代理商: DS21FF44N
DS21FT44/DS21FF44
36 of 110
SYMBOL
POSITION
NAME AND DESCRIPTION
Sa7S
TCR2.6
Sa7 Bit Select. Set to one to source the Sa7 bit from the
TLINK pin; set to zero to not source the Sa7 bit. See Section
22 for timing details.
Sa6S
TCR2.5
Sa6 Bit Select. Set to one to source the Sa6 bit from the
TLINK pin; set to zero to not source the Sa6 bit. See Section
22 for timing details.
Sa5S
TCR2.4
Sa5 Bit Select. Set to one to source the Sa5 bit from the
TLINK pin; set to zero to not source the Sa5 bit. See Section
22 for timing details.
Sa4S
TCR2.3
Sa4 Bit Select. Set to one to source the Sa4 bit from the
TLINK pin; set to zero to not source the Sa4 bit. See Section
22 for timing details.
ODM
TCR2.2
Output Data Mode.
0 = pulses at TPOSO and TNEGO are one full TCLKO
period wide
1 = pulses at TPOSO and TNEGO are 1/2 TCLKO period
wide
AEBE
TCR2.1
Automatic E–Bit Enable.
0 = E–bits not automatically set in the transmit direction
1 = E–bits automatically set in the transmit direction
PF
TCR2.0
Function of RLOS/LOTC Pin.
0 = Receive Loss of Sync (RLOS)
1 = Loss of Transmit Clock (LOTC)
CCR1: COMMON CONTROL REGISTER 1 (Address=14 Hex)
(MSB)
(LSB)
FLB
THDB3
TG802
TCRC4
RSM
RHDB3
RG802
RCRC4
SYMBOL
POSITION
NAME AND DESCRIPTION
FLB
CCR1.7
Framer Loopback.
0=loopback disabled
1=loopback enabled
THDB3
CCR1.6
Transmit HDB3 Enable.
0=HDB3 disabled
1=HDB3 enabled
TG802
CCR1.5
Transmit G.802 Enable. See Section 22 for details.
0=do not force TCHBLK high during bit 1 of timeslot 26
1=force TCHBLK high during bit 1 of timeslot 26
TCRC4
CCR1.4
Transmit CRC4 Enable.
0=CRC4 disabled
1=CRC4 enabled
RSM
CCR1.3
Receive Signaling Mode Select.
0=CAS signaling mode
1=CCS signaling mode
RHDB3
CCR1.2
Receive HDB3 Enable.
0=HDB3 disabled
1=HDB3 enabled
相关PDF资料
PDF描述
DS21FT40N DATACOM, FRAMER, PBGA300
DS21FT40 DATACOM, FRAMER, PBGA300
DS21FT42 DATACOM, FRAMER, PBGA300
DS21FT42N DATACOM, FRAMER, PBGA300
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