CX28398 Conexant Systems, CX28398 Datasheet - Page 9
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CX28398
Manufacturer Part Number
CX28398
Description
(CX28394 - CX28398) Quad/x16/Octal?T1/E1/J1 Framers
Manufacturer
Conexant Systems
Datasheet
1.CX28398.pdf
(305 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
CX28398-23
Manufacturer:
MINDSPEED
Quantity:
263
Company:
Part Number:
CX28398G-26
Manufacturer:
PEREGRIN
Quantity:
2 000
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CX28394/28395/28398
Quad/x16/Octal—T1/E1/J1 Framers
3.0
100054E
2.5
2.6
2.7
2.8
Registers
3.1
3.2
3.3
3.4
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
Microprocessor Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-55
2.5.1
2.5.2
2.5.3
2.5.4
Loopbacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-61
Joint Test Access Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-62
2.8.1
2.8.2
Address Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Global Control and Status Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Primary Control and Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Interrupt Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Sa-Byte Overwrite Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
Overhead Pattern Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
2.4.4.1
2.4.4.2
2.4.4.3
2.4.4.4
Test Pattern Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
Transmit Error Insertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
In-Band Loopback Code Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51
ZCS Encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51
Address/Data Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56
Bus Control Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56
Interrupt Requests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56
Device Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58
Remote Line Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59
Remote Payload Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59
Remote Per-Channel Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-59
Local Framer Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-60
Local Per-Channel Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-60
Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-62
Device Identification Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-63
000—Device Identification (DID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
080—Framer Control Register (FCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
081—Master Interrupt Request (MIR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
082—Master Interrupt Enable (MIE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
083—Test Configuration (TEST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
001—Primary Control Register (CR0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
003—Interrupt Request Register (IRR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
Framing Pattern Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
Alarm Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
CRC Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
Far-End Block Error Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
Conexant
Table of Contents
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