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参数资料
| 型号： | PDI1394P11BD-S |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | Buffer和线驱动 |
| 英文描述： | TRIPLE LINE TRANSCEIVER, PQFP64 |
| 文件页数： | 15/20页 |
| 文件大小： | 148K |
| 代理商： | PDI1394P11BD-S |
Philips Semiconductors
Product specification
PDI1394P11
3-port physical layer interface
1999 Apr 09
4
6.0
BLOCK DIAGRAM
PORT 1
PORT 2
PORT 3
BIAS
VOLTAGE AND
CURRENT
GENERATOR
RECEIVED
DATA
DECODER/
TIMER
LINK
INTERFACE
ARBITRATION
AND CONTROL
STATE
MACHINE
LOGIC
CRYSTAL
OSCILLATOR
PLL SYSTEM
& TRANSMIT
CLOCK
GENERATOR
TRANSMIT
DATA
ENCODER
TESTM1
TESTM2
C/LKON
PC0
PC1
PC2
D0
D1
D2
D3
CTL0
CTL1
LREQ
SYSCLK
CNA
ISO–
LPS
CPS
RESET–
PD
R0
R1
TPBIAS1
TPBIAS2
TPBIAS3
TPA1+
TPA1–
TPB1+
TPB1–
TPA2+
TPA2–
TPB2+
TPB2–
TPA3+
TPA3–
TPB3+
TPB3–
XI
XO
FILTER
SV00228
7.0
FUNCTIONAL SPECIFICATION
The PDI1394P11 is an IEEE1394–1995 High Performance Serial
Bus Specification compliant physical layer interface device. It
provides an interface between an attached link layer controller and
three 1394 cable interface ports. In addition to the interface function,
the PDI1394P11 performs bus initialization and arbitration functions
as well as monitoring line conditions and connection status.
7.1
Clocking
The PDI1394P11 utilizes a stable internal reference clock of
196.608 MHz. The reference clock is generated using an external
24.576 MHz crystal and an internal Phase Locked Loop (PLL). The
PLL clock is divided down to 49.152 MHz and 98.304 MHz clock
signals. The 49.152 MHz clock is used for internal logic and
provided as an output to clock a link layer controller. The 196.608
MHz and 98.304 MHz clocks are used for synchronization of the
transmitted strobe and data information.
7.2
Port Interfaces
The PDI1394P11 provides the transceiver functions needed to
implement a three port node in a cable-based 1394 network. Each
cable port incorporates two differential line transceivers. In addition
to transmission and reception of packet data, the line transceivers
monitor conditions on the cable to determine connection status, data
speed, and bus arbitration states.
The PDI1394P11 receives data to be transmitted over the bus from
two or four parallel data paths to the Link Controller, D[0:3]. These
data paths are latched and synchronized with the 49.152 MHz clock.
The parallel bit paths are combined serially, encoded and
transmitted at either 98.304 Mb/s or 196.608 Mb/s, depending
whether the transaction is a 100 Mb/s or 200 Mb/s transfer,
respectively. The transmitted data is encoded as data-strobe
information, with the data information being transmitted on the TPB
cable pairs and the strobe information transmitted on the TPA cable
pairs.
During packet reception the TPA and TPB transmitters of the
receiving cable port are disabled, and the receivers for that port are
enabled. The encoded data information is received on the TPA cable
pair and the strobe information is received on the TPB cable pair.
The combination of the data and strobe signals is decoded to
recover the receive clock signal and the serial data stream. The
serial data stream is converted to two or four parallel bit streams,
resynchronized to the internal 49.152 MHz clock and sent to the
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相关代理商/技术参数 |
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|---|---|
| PDI1394P21 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:3-port physical layer interface |
| PDI1394P21BE | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:3-port physical layer interface |
| PDI1394P22 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:3-port physical layer interface |
| PDI1394P22BD | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:3-port physical layer interface |
| PDI1394P23 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:2-port/1-port 400 Mbps physical layer interface |
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