PM4341AT1XC
DATA SHEET
PMC-900602
ISSUE 7
T1 FRAMER/TRANSCEIVER
3
APPLICATION EXAMPLES
Figure 1
- Example 1. T1 or E1 ATM Interface Using PM7345
RRDENB
FRDB/RFCLK
RSOC
RAS
BRPCM
BRFPO
RCLKO
RPOS/RDAT
RNEG/ROHM
RCLK
RX
CELL
INTERFACE
ATM/SMDS
Adaptation
Layer
Processor
(SAR or
policing
functions)
REF
RRC
REOH
REOC
TIOHM
FRDATA[7:0]
RFIFOE/RCA
C13/CADD
PM 4341A
T1XC T1
Transceiver
TC
TW RENB
FW RB/TFCLK
TSOC
TX
CELL
INTERFACE
TAP
TPOS/TDAT
TNEG/TOHM
TCLK
BTPCM
BTFP
BTCLK
TCLKO
TCLKI
TAN
FW DATA[7:0]
TFIFOFB/TCA
TICLK
XCLK
37.056 MHz
TPOHCLK
TPOHFP
TPOHINS
TPOH
1.544
MHz
RPOHCLK
RPOHFP
RPOH
A[7:0]
AD[7:0]
PM7345
S/UNI-PDH
D[7:0]
ALE
ALE
RDB
W RB
SATURN
User-Netw ork
Interface for
PDH
Intel/
M otorola
Single Chip
µP
RDB
W RB
CSB
TOHINS
TOH
+5V
RESB
RSTB
INTB
INT
From Master
reset circuitry
From chip select
decode circuitry
Example 1 shows the PM4341 T1XC or PM6341 E1XC used with a PM7345
™
Saturn User Network Interface for PDH (S/UNI-PDH ) to implement ATM wide
area user network interfaces (UNI) and network node interfaces (NNI).
In this example, the T1 LIU and framing functions are provided by the PM4341A
™
T1XC.The combination of the T1XC or E1XC devices with the S/UNI-PDH
allows both PLCP formatted DS1/E1 signals and CCITT G.804 compliant
DS1/E1 signals to be processed. The G.804 specification defines ATM cell
mappings for a variety of transmission formats, including the 1.544 Mbit/s DS1
and the 2.048 Mbit/s E1 formats.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
6
PMC [ PMC-SIERRA, INC ]
