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DS26502 Datasheet

  • DS26502

  • T1/E1/J1/64KCC BITS单元

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DS26502 T1/E1/J1/64KCC BITS Element
NAME
TYPE
A6/MPS0
I
A5/CPOL/
TMODE0
I
A4/CPHA/
L2
I
A3/L1
I
A2/L0
I
A1/TAIS
I
FUNCTION
Address Bus Bit A[6]/MCLK Prescale Select
A6: In nonmultiplexed bus operation (BIS[1:0] = 01), this pin serves as A[6].
In multiplexed bus operation (BIS[1:0] = 00), these pins are not used and
should be tied low.
MPS0: In Hardware Mode (BIS[1:0] = 11), MCLK prescale select is used to
set the prescale value for the PLL.
Address Bus Bit A[5]/Serial Port Clock Polarity Select/Transmit Mode
Select 0
A5: In nonmultiplexed bus operation (BIS[1:0] = 01), this pin serves as A[5].
In multiplexed bus operation (BIS[1:0] = 00), these pins are not used and
should be tied low.
CPOL: In Serial Port Mode (BIS[1:0] = 10), this pin selects the serial port
clock polarity. Please see the functional timing diagrams for the Serial Port
Interface for more information.
TMODE0: In Hardware Mode (BIS[1:0] = 11), this pin is used to configure
the transmit operating mode.
Address Bus Bit A[4]/Serial Port Clock Phase Select/Line Build-Out
Select 2
A4: In nonmultiplexed bus operation (BIS[1:0] = 01), this pin serves as A[4].
In multiplexed bus operation (BIS[1:0] = 00), these pins are not used and
should be tied low.
CPHA: In Serial Port Mode (BIS[1:0] = 10), this pin selects the serial port
clock phase. See the functional timing diagrams for the Serial Port Interface
for more information.
L2: In Hardware Mode (BIS[1:0] = 11), this pin selects the line build-out
value.
Address Bus Bit A[3]/Line Build-Out Select 1
A3: In nonmultiplexed bus operation (BIS[1:0] = 01), this pin serves as A[3].
In multiplexed bus operation (BIS[1:0] = 00), these pins are not used and
should be tied low.
L1: In Hardware Mode (BIS[1:0] = 11), this pin selects the line build-out
value.
Address Bus Bit A[2]/Line Build-Out Select 0
A2: In nonmultiplexed bus operation (BIS[1:0] = 01), this pin serves as A[2].
In multiplexed bus operation (BIS[1:0] = 00), these pins are not used and
should be tied low.
L0: In Hardware Mode (BIS[1:0] = 11), this pin selects the line build-out
value.
Address Bus Bit A[1]/Transmit AIS
A1: In nonmultiplexed bus operation (BIS[1:0] = 01), this pin serves as A[1].
In multiplexed bus operation (BIS[1:0] = 00), these pins are not used and
should be tied low.
TAIS: When set to a 1 and in T1/E1 operating modes, the transmitter will
transmit an AIS pattern. This pin is ignored in all other operating modes.
18 of 124

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