DS2155 datasheet(21/262 Pages) DALLAS

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DS2156

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Signal Name:

TPOSO

Signal Description:

Transmit Positive-Data Output

Signal Type:

Output

Updated on the rising edge of TCLKO with the bipolar data out of the transmit-side formatter. Can be programmed

to source NRZ data by the output data format (IOCR1.0) control bit. This pin is normally connected to TPOSI.

Signal Name:

TNEGO

Signal Description:

Transmit Negative-Data Output

Signal Type:

Output

Updated on the rising edge of TCLKO with the bipolar data out of the transmit-side formatter. This pin is normally

connected to TNEGI.

Signal Name:

TCLKO

Signal Description:

Transmit Clock Output

Signal Type:

Output

Buffered clock that is used to clock data through the transmit-side formatter (i.e., either TCLK or RCLKI). This pin

is normally connected to TCLKI.

Signal Name:

TPOSI

Signal Description:

Transmit Positive-Data Input

Signal Type:

Input

Sampled on the falling edge of TCLKI for data to be transmitted out onto the T1 line. Can be internally connected

to TPOSO by connecting the LIUC pin high. TPOSI and TNEGI can be connected together in NRZ applications.

Signal Name:

TNEGI

Signal Description:

Transmit Negative-Data Input

Signal Type:

Input

Sampled on the falling edge of TCLKI for data to be transmitted out onto the T1 line. Can be internally connected

to TNEGO by connecting the LIUC pin high. TPOSI and TNEGI can be connected together in NRZ applications.

Signal Name:

TCLKI

Signal Description:

Transmit Clock Input

Signal Type:

Input

Line interface transmit clock. Can be internally connected to TCLKO by connecting the LIUC pin high.

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