cx28394 Conexant Systems, Inc., cx28394 Datasheet - Page 19

• Manufacturer Part Number: cx28394
• Description: Quad/x16/octal-t1/e1/j1 Framers
• Manufacturer: Conexant Systems, Inc.

1.1.1 External Datalink
1.1.2 RINDO/TINDO
100054E
1.0 Product Description
1.1 Overview
The CX2839x devices each contain multiple T1/E1 framers which provide the
data access and framing portion of T1 and E1 physical layer interfaces:
due to the pins provided. These differences are summarized below.
The CX28394 and CX28398 devices include an External Datalink (DL3) which
provides signal access to any bit(s) in any time slot of all frames, odd frames, or
even frames, including T1 framing bits. Refer to
Data Link (CX28394 and CX28398
Link (CX28394 and CX28398
CX28395 device.
Receive and Transmit Time Slot Indicator signals are provided by each framer to
mark selected (programmable) receive and transmit system bus time slots. On the
CX28394 and CX28398 devices, these signals appear on different pins depending
on whether Multiplexed System Bus mode or Non-Multiplexed System Bus mode
is selected. On the CX28395, they are available only in Multiplexed Bus mode.
While the framers are identical, there are minor differences among the devices
CX28394
CX28398
CX28395
Device
Conexant
1
Only). The DL3 signals are not available on the
Only), and
Number of Framers
16
4
8
2.4.1, External Transmit Data
Section 2.2.8, External Receive
1-1