參數(shù)資料
型號： DS21Q44TN
英文描述： MICROSWITCH, SPDT, SIM ROLLER LEVER; Current, contact AC:5A; Force, operating:91.75gf; Travel, pre:16.0mm; Centres, fixing LxW:22.2mm; Temp, op. max:120(degree C); Temp, op. min:-40(degree C); Length / Height, external:9.25mm; Width, RoHS Compliant: Yes
中文描述： 增強的四素E1成幀器
文件頁數(shù)： 28/105頁
文件大小： 620K
代理商： DS21Q44TN
DS21Q44
28 of 105
SYMBOL
POSITION
NAME AND DESCRIPTION
TUA1
TCR1.4
Transmit Unframed All Ones.
0 = transmit data normally
1 = transmit an unframed all one’s code at TPOS and TNEG
Transmit International Bit Select.
0 = sample Si bits at TSER pin
1 = source Si bits from TAF and TNAF registers (in this mode,
TCR1.6 must be set to 0)
Transmit Signaling All Ones.
0 = normal operation
1 = force timeslot 16 in every frame to all ones
TSYNC Mode Select.
0 = frame mode (see the timing in Section 18)
1 = CAS and CRC4 multiframe mode (see the timing in Section
18)
TSYNC I/O Select.
0 = TSYNC is an input
1 = TSYNC is an output
TSiS
TCR1.3
TSA1
TCR1.2
TSM
CR1.1
TSIO
TCR1.0
Notes:
See Figure 18–15 for more details about how the Transmit Control Registers affect the operation of the
DS21Q44.
TCR2: TRANSMIT CONTROL REGISTER 2
(Address=13 Hex)
(MSB)
Sa8S
(LSB)
PF
Sa7S
Sa6S
Sa5S
Sa4S
ODM
AEBE
SYMBOL
POSITION
NAME AND DESCRIPTION
Sa8S
TCR2.7
Sa8 Bit Select.
Set to one to source the Sa8 bit from the TLINK
pin; set to zero to not source the Sa8 bit. See Section 18 for
timing details.
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 18 for
timing details.
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 18 for
timing details.
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 18 for
timing details.
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 18 for
timing details.
Sa7S
TCR2.6
Sa6S
TCR2.5
Sa5S
TCR2.4
Sa4S
TCR2.3
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