DS2155 datasheet(9/238 Pages) DALLAS

9 / 238 page

DS2155

9 of 238

REVISION

DESCRIPTION

The definition of the EGL bit in the LIC1 register has been corrected for both T1 and E1

mode.

T1 Mode: EGL = 1 was changed from 15dB to –15dB

E1 Mode: EGL = 0 was changed from –10dB to –12dB

THE FOLLOWING ARE FORMAT CHANGES AND ADDED OR REMOVED

TEXT, TABLES OR DIAGRAMS:

Replace X* format for showing active low signals with

Remove redundant statements about “multiport configurations” in Interrupt Handling

section

Remove BASIC NETWORK CONNECTIONS figure in LINE INTERFACE UNIT

section

Add “Simplified Diagram of BERT in Network Direction” figure to BERT section

Add “Simplified Diagram of BERT in Backplane Direction” figure to BERT section

Add Receive Signaling Registers (E1 Mode, CCS Format) table to Receive Signaling

section

Add GRIC and GTIC function table to IAAR register

Changed Table of contents to include table of figures and table of tables.

Add note for FASRC bit.

Add T1 and E1 Transmit Flow Chart.

Added RCLK to BPCLK timing diagram.

THE FOLLOWING ARE NEW FEATURES AVAILABLE ON THE DS2155 REV

B1 AND ARE EXPLAINED IN THE BODY OF THE DATA SHEET

Add FRAS0, TCCS, RCCS and GRSRE bits to Signaling Control Register (SIGCR)

Add section on AIS-CI and RAI-CI Generation and Detection

Add RAIS-CI status bit to Status Register 4 (SR4) and Interrupt Mask Register 4 (IMR4)

Add RAIS-CI status bit to Status Register 4 (SR4)

Add TRAI-CI control bit to T1 Common Control Register 1 (TCCR1)

Add TAIS-CI control bit to T1 Common Control Register 1 (TCCR1)

Add Pseudorandom 2E9-1 pattern to PS0, PS1 and PS2 bit description in Bert Control

Add BD bit to Information Register 2 (INFO2)

Add ILUT status bit to Status Register 1 (SR1) and Interrupt Mask Register 1 (IMR1)

Add INTDIS and TMSS bits to Common Control Register 3 (CCR3)

DS2155 Datasheet(PDF) 9 Page - Dallas Semiconductor