DS21348 Dallas Semiconducotr, DS21348 Datasheet - Page 9

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DS21348

Manufacturer Part Number
DS21348
Description
3.3V E1/T1/J1 Line Interface
Manufacturer
Dallas Semiconducotr
Datasheet

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TRANSMIT LOGIC Figure 3-3
4. PIN DESCRIPTION
The DS21348 can be controlled in a parallel port mode, a serial port mode, or a hardware mode (Table
4-1, 4-2, and 4-3). The parallel and serial port modes are described in Section 3, and the Hardware Mode
is described below.
BUS INTERFACE SELECTION Table 4-1
To
Remote
Loopback
BIS1
0
0
0
0
1
1
CCR3.1
BPV
Insert
Routed to
All Blocks
CCR1.6
OR
Gate
mux
BIS0
1
0
0
0
1
1
0
1
CCR1.1
mux
0
1
CCR2.2
B8ZS/
HDB3
Coder
RCLK
CCR1.2
PBTS
OR
Gate
mux
CCR1.0
0
1
0
1
-
-
AND
Gate
0
1
CCR3.0
Logic
Error
Insert
9 of 73
To LOTC Output Pin
Muxed Intel
Muxed Motorola
Nonmuxed Intel
Nonmuxed Motorola
Serial Port
Hardware
CCR3.3
mux
CCR3.4
Loss Of Transmit
Clock Detect
MODE
JACLK
(derived
from
MCLK)
Loop Code Generator
SR.5
PRBS Generator
OR
Gate
Clock
Invert
CCR2.1
tx bd
TPOS
TNEG
TCLK

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