Philips PDI1394P23 Technical data

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PDI1394P23

2-port/1-port 400 Mbps physical layer interface

Preliminary data Supersedes data of 2001 Jul 18

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2001 Sep 06

Philips Semiconductors Preliminary data

PDI1394P232-port/1-port 400 Mbps physical layer interface

1.0 FEATURES

•Fully supports provisions of IEEE 1394–1995 Standard for high

performance serial bus and the P1394a–2000 Standard.

• Fully interoperable with Firewire and i.LINK implementations of

the IEEE 1394 Standard.

•Full P1394a support includes:

– Connection debounce – Arbitrated short reset – Multispeed concatenation – Arbitration acceleration – Fly-by concatenation – Port disable/suspend/resume

•Provides two 1394a fully-compliant cable ports at

100/200/400 Mbps.

•Fully compliant with Open HCI requirements

•Interface to link-layer controller supports both low-cost bus-holder

isolation and optional Annex J electrical isolation

•Supports extended bias-handshake time for enhanced

interoperability with camcorders

•Data interface to link-layer controller through 2/4/8 parallel lines at

49.152 MHz

•Register bits give software control of contender bit, power class

bits, link active bit, and 1394a features

• Cable ports monitor line conditions for active connection to remote

node.

•Separate cable bias (TPBIAS) for each port

•Logic performs system initialization and arbitration functions

•Encode and decode functions included for data-strobe bit level

encoding

•Incoming data resynchronized to local clock

•Single 3.3 volt supply operation

•Minimum V

of 2.7 V for end-of-wire power-consuming devices

•Interoperable with link-layer controllers using 3.3 V and 5 V

supplies

•Interoperable with other Physical Layers (PHYs) using 3.3 V and

5 V supplies

•Node power class information signaling for system power

management

•Cable power presence monitoring

•Power down features to conserve energy in battery-powered

applications include:

– Automatic device power down during suspend – Device power down terminal – Link interface disable via LPS – Inactive ports powered-down

•While unpowered and connected to the bus, will not drive TPBIAS

on a connected port, even if receiving incoming bias voltage on that port

•Can be used as a one port PHY without the use of any extra

external components

•Low-cost 24.576 MHz crystal provides transmit, receive data at

100/200/400 Mbps, and link-layer controller clock at 49.152 MHz

•Does not require external filter capacitors for PLL

•LQFP package is function and pin compatible with the Texas

Instruments TSB41LV02AE and TSB41AB2E 400 Mbps PHYs.

2.0 DESCRIPTION

The PDI1394P23 provides the digital and analog transceiver functions needed to implement a two/one port node in a cable-based IEEE 1394–1995 and/or 1394a–2000 network. Each cable port incorporates two differential line transceivers. The transceivers include circuitry to monitor the line conditions as needed for determining connection status, for initialization and arbitration, and for packet reception and transmission. The PDI1394P23 is designed to interface with a Link Layer Controller (LLC), such as the PDI1394L40, or PDI1394L41.

3.0 ORDERING INFORMATION

PACKAGE TEMPERATURE RANGE ORDER CODE PKG. DWG. #

64-pin plastic LQFP 0 to +70 °C PDI1394P23BD SOT314-2 64-ball plastic LFBGA 0 to +70 °C PDI1394P23EC SOT534-1

1. Implements technology covered by one or more patents of Apple Computer, Incorporated and SGS Thompson, Limited.

2. Firewire is a trademark of Apple Computer Inc. i.LINK is a trademark of Sony.

2001 Sep 06

Philips Semiconductors Preliminary data

PDI1394P232-port/1-port 400 Mbps physical layer interface

4.0 PIN AND BALL CONFIGURATION

4.1 LQFP CONFIGURA TION

LREQ

SYSCLK

CNA CTL0 CTL1

LPS

DGND

1 2 3 4 5

11 12

14 15 16

DGND

62 61 60 59 58 57 56 55 5464 63 53 52 51 50 49

19 20 21 22 23 24 25

DGND

DVDDDV

PC0

C/LKON

XOXIPLLGND

PC1

PC2

PLLGND

PDI1394P23

ISO

CPS

PLLV

NCNCRESET

26 2717 18

DDAVDD

28 29 30 31 32

TEST0

BRIDGE

TWOPORT

AGND

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 AGND

AGND

AGND TPBIAS1 TPA1+ TPA1– TPB1+ TPB1– AV

R1 R0 AGND TPBIAS0 TPA0+

TPA0–

TPB0+

TPB0–

2001 Sep 06

SV001871

Philips Semiconductors Preliminary data

PDI1394P232-port/1-port 400 Mbps physical layer interface

4.2 LFBGA CONFIGURA TION

BOTTOM (BALL) VIEW

ABCDEFGH

SV01909

Ball

Signal Ball Signal Ball Signal Ball Signal

A1 AGND C1 RESET E1 PLLGND G1 DGND A2 TPBIAS1 C2 AV A3 TPA1– C3 AV

DD DD

E2 XI G2 DGND

E3 XO G3 CTL0 A4 R1 C4 TPB1+ E4 D2 G4 CTL1 A5 AGND C5 AV

A6 TPBIAS0 C6 TPB0+ E6 DV A7 TPB0– C7 AV

E5 CPS G5 D5

G6 PD

E7 PC1 G7 DGND A8 AGND C8 TEST0 E8 ISO G8 DGND B1 AGND D1 PLLV B2 AGND D2 AV

F1 DV

F2 DV

DD DD

H1 LREQ

H2 SYSCLK B3 TPA1+ D3 PLLGND F3 CNA H3 D0 B4 TPB1– D4 PLLV

F4 D4 H4 D1 B5 TPA0+ D5 R0 F5 D6 H5 D3 B6 TPA0– D6 BRIDGE F6 C/LKON H6 D7 B7 AGND D7 TWOPORT F7 PC0 H7 LPS B8 AV

D8 DV

F8 PC2 H8 DGND

2001 Sep 06

Philips Semiconductors Preliminary data

PDI1394P232-port/1-port 400 Mbps physical layer interface

5.0 PIN DESCRIPTION

Name Pin Type LQFP

AGND Supply 32, 33,

BRIDGE CMOS 28 D6 I BRIDGE input. This input is used to set the Bridge_Aware bits located in

C/LKON CMOS 5V tol 19 F6 I/O Bus Manager/Isochronous Resource Manager (IRM) Contender

CNA CMOS 3 F3 O Cable Not Active output. This terminal is asserted high when there are

CPS CMOS 24 E5 I Cable Power Status input. This terminal is normally connected to cable

Supply 30, 31,

Numbers

39, 48, 49, 50

42, 51, 52

LFBGA

Ball

Numbers

A1, A5, A8, B1, B2, B7

B8, C2, C3, C5, C7, D2

I/O Description

— Analog circuit ground terminals. These terminals should be tied together

— Analog circuit power terminals. A combination of high frequency

to the low impedance circuit board ground plane.

decoupling capacitors on each side are suggested, such as paralleled

0.1 µF and 0.001 µF. These supply terminals are separated from PLLV

and DVDD internal to the device to provide noise isolation. They

should be tied at a low impedance point on the circuit board.

the Vendor-Dependent register Page 7, base address 1001b, bit positions 6 and 7. This pin is sampled during a hardware reset (RESET low). When the BRIDGE pin is tied low (or through a 1 kΩ resistor to accommodate other vendor’s pin-compatible chips), the Bridge_Aware bits are set to “00” indicating a “non-bridge device.” When the BRIDGE

pin is tied high, the Bridge_Aware bits are set to “11” indicating a “1394.1

bridge compliant” device. The default setting of the Bridge_Aware bits can be overridden by writing to the register. The Bridge_Aware bits are reported in the self-ID packet at bit positions 18 and 19.

programming input and link-on output. On hardware reset, this terminal is used to set the default value of the contender status indicated during self-ID. Programming is done by tying the terminal through a 10-kΩ resistor to a high (contender) or low (not contender). The resistor allows the link-on output to override the input.

If this pin is connected to a LLC driver pin for setting Bus Manager/IRM contender status, then a 10-kΩ series resistor should be placed on this

line between the PHY and the LLC to prevent possible contention. In this

case. the pull-high or pull-low resistors mentioned in the previous paragraph should not be used. Refer to Figure 9.

Following hardware reset, this terminal is the link-on output, which is used to notify the LLC to power-up and become active. The link-on output is a square-wave signal with a period of approximately 163 ns (8 SYSCLK cycles) when active. The link-on output is otherwise driven low, except during hardware reset when it is high impedance.

The link-on output is activated if the LLC is inactive (LPS inactive or the LCtrl bit cleared) and when:

a) the PHY receives a link-on PHY packet addressed to this node, b) the PEI (port-event interrupt) register bit is 1, or c) any of the CTOI (configuration-timeout interrupt), CPSI

(cable-power-status interrupt), or STOI (state-timeout interrupt) register bits are 1 and the RPIE (resuming-port interrupt enable) register bit is also 1.

Once activated, the link-on output will continue active until the LLC becomes active (both LPS active and the LCtrl bit set). The PHY also deasserts the link-on output when a bus-reset occurs unless the link-on output would otherwise be active because one of the interrupt bits is set (i.e., the link-on output is active due solely to the reception of a link-on PHY packet).

NOTE: If an interrupt condition exists which would otherwise cause the link-on output to be activated if the LLC were inactive, the link-on output will be activated when the LLC subsequently becomes inactive.

no ports receiving incoming bias voltage.

power through a 390 kΩ resistor. This circuit drives an internal comparator that is used to detect the presence of cable power.

2001 Sep 06

Philips Semiconductors Preliminary data

PDI1394P232-port/1-port 400 Mbps physical layer interface

Name DescriptionI/OLFBGA

CTL0, CTL1

D0–D7 CMOS 5V tol 6, 7, 8,

DGND Supply 17, 18,

ISO CMOS 23 E8 I Link interface isolation control input. This terminal controls the operation

LPS CMOS 5V tol 15 H7 I Link Power Status input. This terminal is used to monitor the

LREQ CMOS 5V tol 1 H1 I LLC Request input. The LLC uses this input to initiate a service request

NC No connect 16, 54,

PC0 PC1 PC2

PD CMOS 5V tol 14 G6 I Power Down input. A logic high on this terminal turns off all internal

Pin Type

CMOS 5V tol 4

Supply 25, 26,

CMOS 5V tol 20

LQFP

Numbers

9, 10, 11, 12, 13

63, 64

61, 62

21 22

Ball

Numbers

G3 G4

H3, H4, E4, H5, F4, G5, F5, H6

G7, H8, G8, G1, G2

D8, E6, F1, F2

— — These pins are not internally connected and consequently are “don’t

F7 E7 F8

I/O Control I/Os. These bi-directional signals control communication

I/O Data I/Os. These are bi-directional data signals between the

— Digital circuit ground terminals. These terminals should be tied together

— Digital circuit power terminals. A combination of high frequency

between the PDI1394P23 and the LLC. Bus holders are built into these terminals.

PDI1394P23 and the LLC. Bus holders are built into these terminals. Unused Dn pins should be pulled to ground through 10 kΩ resistors.

to the low impedance circuit board ground plane.

decoupling capacitors near each side of the IC package are suggested, such as paralleled 0.1 µF and 0.001 µF. These supply terminals are separated from PLLVDD and AVDD internal to the device to provide noise isolation. They should be tied at a low impedance point on the circuit board.

of output differentiation logic on the CTL and D terminals. If an optional isolation barrier of the type described in Annex J of IEEE Std 1394–1995 is implemented between the PDI1394P23 and LLC, the ISO terminal

should be tied low to enable the differentiation logic. If no isolation barrier

is implemented (direct connection), or bus holder isolation is implemented, the ISO differentiation logic.

active/power status of the link layer controller and to control the state of the PHY -LLC interface. This terminal should be either connected to the LPS output of the LLC, or if no LPS terminal is available on the LLC the LPS terminal can be connected to the V 10 kΩ resistor. A pulsed signal should be used when an isolation barrier exists between the LLC and PHY. (See Figure 8)

The LPS input is considered inactive if it is sampled low by the PHY for more than 2.6 µs (128 SYSCLK cycles), and is considered active otherwise (i.e., asserted steady high or an oscillating signal with a low time less than 2.6 µs). The LPS input must be high for at least 21 ns in order to be guaranteed to be observed as high by the PHY.

When the PDI1394P23 detects that LPS is inactive, it will place the PHY -LLC interface into a low-power reset state. In the reset state, the CTL and D outputs are held in the logic zero state and the LREQ input is ignored; however, the SYSCLK output remains active. If the LPS input remains low for more than 26 µs (1280 SYSCLK cycles), the PHY-LLC interface is put into a low-power disabled state in which the SYSCLK output is also held inactive. The PHY -LLC interface is placed into the disabled state upon hardware reset.

The LLC is considered active only if both the LPS input is active and the LCtrl register bit is set to 1, and is considered inactive if either the LPS input is inactive or the LCtrl register bit is cleared to 0.

to the PDI1394P23. Bus holder is built into this terminal.

cares”. Other vendors’ pin compatible chips may require

connections and external circuitry on these pins.

I Power Class programming inputs. On hardware reset, these inputs set

the default value of the power class indicated during self-ID. Programming is done by tying the terminals high or low. Refer to Table 21 for encoding.

circuitry except the cable-active monitor circuits which control the CNA output. For more information, refer to Section 17.2

terminal should be tied high to disable the

supplying the LLC through a

2001 Sep 06

Philips Semiconductors Preliminary data

matched and as short as possible to the external load resistors and to

PDI1394P232-port/1-port 400 Mbps physical layer interface

Name DescriptionI/OLFBGA

PLLGND Supply 57, 58 E1, D3 — PLL circuit ground terminals. These terminals should be tied together to

PLLV

R0 R1

RESET CMOS 5V tol 53 C1 I Logic reset input. Asserting this terminal low resets the internal logic. An

SYSCLK CMOS 2 H2 O System clock output. Provides a 49.152 MHz clock signal, synchronized

TEST0 CMOS 29 C8 I Test control input. This input is used in manufacturing tests of the

TPA0+, TPA1+

TPA0–, TPA1–

TPB0+, TPB1+

TPB0–, TPB1–

TPBIAS0, TPBIAS1

TWOPORT 27 D7 One/two port selector pin. This pin should be tied to DV

XI XO

Pin Type

Supply 56 D1, D4 — PLL circuit power terminals. A combination of high frequency decoupling

Bias 40

Cable 37

Cable 36

Cable 35

Cable 34

Cable 38

Crystal 59

LQFP

Numbers

Ball

Numbers

D5 A4

B5 B3

B6 A3

C6 C4

A7 B4

A6 A2

E2 E3

the low impedance circuit board ground plane.

capacitors near each terminal are suggested, such as paralleled 0.1 µF and 0.001 µF. This supply terminals is separated from DVDD and AV internal to the device to provide noise isolation. They should be tied at a low impedance point on the circuit board.

— Current setting resistor pins. These pins are connected to an external

I/O

I/O Twisted-pair bias output. This provides the 1.86V nominal bias voltage

— Crystal oscillator inputs. These terminals connect to a 24.576 MHz

resistor to set the internal operating currents and cable driver output currents. A resistance of 6.34 kΩ ±1% is required to meet the IEEE 1394–1995 Std. output voltage limits.

internal pull-up resistor to VDD is provided so only an external delay capacitor is required for proper power-up operation. For more information, refer to Section 17.2. This input is otherwise a standard Schmitt logic input, and can also be driven by an open-drain type driver.

with data transfers, to the LLC.

PDI1394P23. For normal use, this terminal should be tied to GND. Twisted-pair cable A differential signal terminals. Board traces from each

pair of positive and negative differential signal terminals should be kept the cable connector. TPA1+ and TPA1– can be left unconnected if the

TWOPORT pin is tied to DGND. Twisted-pair cable B differential signal terminals. Board traces from each

pair of positive and negative differential signal terminals should be kept the cable connector. TPB1+ and TPB1– can be left unconnected if the

TWOPORT pin is tied to DGND.

needed for proper operation of the twisted-pair cable drivers and receivers, and for signaling to the remote nodes that there is an active cable connection. These terminals must be decoupled with a

0.3 µF–1 µF capacitor to ground. TPBIAS1 can be left unconnected if the TWOPORT pin is tied to DGND.

operation and tied to DGND for one port operation. When tied to DVDD, both ports 0 and 1 are operational. When tied to DGND, port 0 is operational and port 1 is disabled.

parallel resonant fundamental mode crystal. The optimum values for the external shunt capacitors are dependent on the specifications of the crystal used. Can also be driven by an external clock generator (leave XO unconnected in this case and start supplying the external clock before resetting the PDI1394P23). For more information, refer to Section 17.5

for two port

2001 Sep 06

Philips Semiconductors Preliminary data

PDI1394P232-port/1-port 400 Mbps physical layer interface

6.0 BLOCK DIAGRAM

LPS /ISO

C/LKON

SYSCLK

LREQ

CTL0 CTL1

PC0 PC1 PC2

CNA

TPBIAS0 TPBIAS1

TWOPORT

/RESET

D0 D1 D2 D3 D4 D5 D6 D7

R0 R1

LINK

INTERFACE

I/O

RECEIVED DATA

DECODER/

RETIMER

ARBITRATION

AND CONTROL

STATE MACHINE

LOGIC

BIAS VOLTAGE

AND

CURRENT

GENERATOR

TRANSMIT

DATA

ENCODER

CABLE POWER

DETECTOR

CABLE PORT 0

CABLE PORT 1

CRYSTAL OSCILLATOR, PLL SYSTEM,

AND CLOCK

GENERATOR

CPS

TPA0+ TPA0–

TPB0+ TPB0–

TPA1+ TPA1–

TPB1+ TPB1–

XI XO

SV01785

7.0 FUNCTIONAL SPECIFICA TION

The PDI1394P23 requires only an external 24.576 MHz crystal as a reference. An external clock can be connected to XI instead of a crystal. An internal oscillator drives an internal phase-locked loop (PLL), which generates the required 393.216 MHz reference signal.

This reference signal is internally divided to provide the clock signals

used to control transmission of the outbound encoded Strobe and Data information. A 49.152 MHz clock signal, supplied to the associated LLC for synchronization of the two chips, is used for resynchronization of the received data. The Power Down (PD) function, when enabled by asserting the PD terminal high, stops operation of the PLL and disables all circuits except the cable bias detectors at the TPB terminals. The port transmitter circuitry and the receiver circuitry are also disabled when the port is disabled, suspended, or disconnected.

The PDI1394P23 supports an optional isolation barrier between itself and its LLC. When the ISO LLC interface outputs behave normally. When the ISO tied low, internal differentiating logic is enabled, and the outputs are driven such that they can be coupled through a capacitive or transformer galvanic isolation barrier as described in

section 5.9.4

. To operate with single capacitor (bus holder) isolation,

2001 Sep 06

input terminal is tied high, the

terminal is

IEEE 1394a

the ISO

on the PHY terminal must be tied high. For more details on using single capacitor isolation, please refer to the Philips Isolation Application Note AN2452.

Data bits to be transmitted through the cable ports are received from the LLC on two, four or eight parallel paths (depending on the requested transmission speed). They are latched internally in the PDI1394P23 in synchronization with the 49.152 MHz system clock. These bits are combined serially, encoded, and transmitted at

98.304/196.608/393.216 Mbps (referred to as S100, S200, and S400 speed, respectively) as the outbound data-strobe information stream. During transmission, the encoded data information is transmitted differentially on the TPB cable pair(s), and the encoded strobe information is transmitted differentially on the TP A cable pair(s).

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 encoded strobe information is received on the TPB cable pair. The received data-strobe information is decoded to recover the receive clock signal and the serial data bits. The serial

Philips Semiconductors Preliminary data

PDI1394P232-port/1-port 400 Mbps physical layer interface

data bits are split into two-, four- or eight-bit parallel streams (depending upon the indicated receive speed), resynchronized to the local 49.152 MHz system clock and sent to the associated LLC. The received data is also transmitted (repeated) on the other active (connected) cable ports.

Both the TPA and TPB cable interfaces incorporate dif ferential comparators to monitor the line states during initialization and arbitration. The outputs of these comparators are used by the internal logic to determine the arbitration status. The TPA channel monitors the incoming cable common-mode voltage. The value of this common-mode voltage is used during arbitration to set the speed of the next packet transmission (speed signaling). In addition, the TPB channel monitors the incoming cable common-mode voltage on the TPB pair for the presence of the remotely supplied twisted-pair bias voltage (cable bias detection).

The PDI1394P23 provides a 1.86 V nominal bias voltage at the TPBIAS terminal for port termination. The PHY contains two independent TPBIAS circuits. This bias voltage, when seen through a cable by a remote receiver, indicates the presence of an active connection. This bias voltage source must be stabilized by an external filter capacitor of 0.3 µF–1 µF.

The line drivers in the PDI1394P23 operate in a high-impedance current mode, and are designed to work with external 112 Ω line-termination resistor networks in order to match the 110 Ω cable impedance. One network is provided at each end of all twisted-pair cable connections. Each network is composed of a pair of series-connected 56 Ω resistors. The midpoint of the pair of resistors that is directly connected to the twisted-pair A terminals is connected

to its corresponding TPBIAS voltage terminal. The midpoint of the pair

of resistors that is directly connected to the twisted-pair B terminals is coupled to ground through a parallel R-C network with recommended values of 5 kΩ and 220 pF. The values of the external line termination resistors are designed to meet the standard specifications when connected in parallel with the internal receiver circuits. An external resistor connected between the R0 and R1 terminals sets the driver output current, along with other internal operating currents. This current setting resistor should be a low TCR part with a value of

6.34 kΩ ±1%. When the power supply of the PDI1394P23 is removed while the

twisted-pair cables are connected, the PDI1394P23 transmitter and receiver circuitry presents a high impedance to the cable in order to not load the TPBIAS voltage on the other end of the cable.

When the PDI1394P23 is used with one or more of the ports not brought out to a connector, the twisted-pair terminals of the unused ports must be terminated for reliable operation. For each unused port, the TPB+ and TPB– terminals can be tied together and then

pulled to ground, or the TPB+ and TPB– terminals can be connected

to the suggested termination network. The TPA+ and TPA– and TPBIAS terminals of an unused port can be left unconnected.

The TEST0 terminal is used to set up various manufacturing test conditions. For normal operation, it should be connected to ground.

The BRIDGE terminal is used to set the default value of the Bridge_Aware bits in the Page 7 (Vendor Dependent) register. Tying BRIDGE low directly (or through a 1 kΩ resistor to accommodate other vendors’ pin-compatible chips), defaults the Bridge_Aware field to “00” indicating a “non-bridge device.” Tying BRIDGE high, defaults the Bridge_Aware bit to “11” indicating a “1394.1 bridge compliant” device. Writing to the Bridge_Aware field overrides the default setting from the BRIDGE terminal. The Bridge_Aware field is reported in the self-ID packet at bit positions 18 and 19.

The TWOPORT terminal is used to select between one port and two port operation. This pin should be tied high for two port operation and tied to ground to use the PDI1394P23 as a one port PHY.

Four package terminals, used as inputs to set the default value for four configuration status bits in the self-ID packet, should be hard-wired high or low as a function of the equipment design. The PC0–PC2 terminals are used to indicate the default power-class status for the node (the need for power from the cable or the ability to supply power to the cable). See Table 21 for power class encoding. The C/LKON terminal is used as an input to indicate that the node is a contender for bus manager.

The PHY supports suspend/resume as defined in the IEEE 1394a specification. The suspend mechanism allows pairs of directly connected ports to be placed into a low power state while maintaining a port-to-port connection between 1394 bus segments. While in a low power state, a port is unable to transmit or receive data transaction packets. However, a port in a low power state is capable of detecting connection status changes and detecting incoming TPBIAS. When all used ports of the PDI1394P23 are suspended, all circuits except the bias-detection circuits are powered down, resulting in significant power savings. The TPBIAS circuit monitors the value of incoming TPA pair common-mode voltage when local TPBIAS is inactive. Because this circuit has an internal current source and the connected node has a current sink, the monitored value indicates the cable connection status. This monitor is called connect-detect.

Both the cable bias-detect monitor and TPBIAS connect-detect

monitor are used in suspend/resume signaling and cable connection

detection. For additional details of suspend/resume operation, refer to the 1394a specification. The use of suspend/resume is recommended for new designs.

The port transmitter and receiver circuitry is disabled during power down (when the PD input terminal is asserted high), during reset (when the RESET cable is connected to the port, or when controlled by the internal arbitration logic. The port twisted-pair bias voltage circuitry is disabled during power down, during reset, or when the port is disabled as commanded by the LLC.

The CNA (cable-not-active) terminal provides a high when there are no twisted-pair cable ports receiving incoming bias (i.e., they are

either disconnected or suspended), and can be used along with LPS

to determine when to power-down the PDI1394P23. The CNA

output is not debounced. When the PD terminal is asserted high, the

CNA detection circuitry is enabled (regardless of the previous state of the ports) and a pull-down is activated on the RESET as to force a reset of the PDI1394P23 internal logic.

The LPS (link power status) terminal works with the C/LKON terminal to manage the power usage in the node. The LPS signal from the LLC is used in conjunction with the LCtrl bit (see Table 1

and Table 2) to indicate the active/power status of the LLC. The LPS

signal is also used to reset, disable, and initialize the PHY -LLC interface (the state of the PHY -LCC interface is controlled solely by the LPS input regardless of the state of the LCtrl bit).

input terminal is asserted low), when no active

terminal so

2001 Sep 06

Philips Semiconductors Preliminary data

SYMBOL

PARAMETER

CONDITION

UNIT

Electrostatic discharge

PDI1394P232-port/1-port 400 Mbps physical layer interface

The LPS input is considered inactive if it remains low for more than

µs and is considered active otherwise. When the PDI1394P23

2.6 detects that LPS is inactive, it will place the PHY -LLC interface into a low-power reset state in which the CTL and D outputs are held in the

logic zero state and the LREQ input is ignored; however, the SYSCLK output remains active. If the LPS input remains low for more than 26 µs, the PHY–LLC interface is put into a low-power disabled state in which the SYSCLK output is also held inactive. The PHY -LLC interface is also held in the disabled state during hardware reset. The PDI1394P23 will continue the necessary repeater functions required for normal network operation regardless of the state of the PHY -LLC interface. When the interface is in the reset or disabled state and LPS is again observed active, the PHY will initialize the interface and return it to normal operation.

8.0 ABSOLUTE MAXIMUM RATINGS

In accordance with the Absolute Maximum Rating System (IEC 134). Voltages are referenced to GND (ground = 0 V).

VI–5V 5 volt tolerant input voltage range –0.5 5.5 V

amb

NOTE:

1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability .

DC supply voltage –0.5 4.0 V

DC input voltage –0.5 VDD+0.5 V

DC output voltage range at any output –0.5 VDD+0.5 V

Operating free-air temperature range 0 +70 °C Storage temperature range –65 +150 °C

stg

The PHY uses the C/LKON terminal to notify the LLC to power up and become active. When activated, the C/LKON signal is a square wave of approximately 163 ns period. The PHY activates the C/LKON output when the LLC is inactive and a wake-up event occurs. The LLC is considered inactive when either the LPS input is inactive, as described above, or the LCtrI bit is cleared to 0. A wake-up event occurs when a link-on PHY packet addressed to this node is received, or conditionally when a PHY interrupt occurs. The PHY deasserts the C/LKON output when the LLC becomes active (both LPS active and the LCtrl bit set to 1). The PHY also deasserts the C/LKON output when a bus-reset occurs unless a PHY interrupt condition exists which would otherwise cause C/LKON to be active.

LIMITS

MIN MAX

Human Body Model — 2 kV

Machine Model — 200 V

2001 Sep 06

Philips Semiconductors Preliminary data

SYMBOL

PARAMETER

CONDITION

MIN

TYP

MAX

UNIT

VDDSu ly voltage

VIDDifferential in ut voltage am litude

TPB common-mode in ut voltage

S200 s eed signal

TPB common-mode in ut voltage

S400 s eed signal

PDI1394P232-port/1-port 400 Mbps physical layer interface

9.0 RECOMMENDED OPERATING CONDITIONS

High-level input voltage, LREQ, CTL0, CTL1, D0-D7

High-level input voltage, C/LKON2,

Source power node 3.0 3.3 3.6 V Non-source power node 2.7 ISO = VDD, VDD >= 2.7 V 2.3 — — V ISO = VDD, VDD >= 3.0 V 2.6 — — V

PC0–PC2, ISO, PD High-level input voltage, RESET 0.6 V Low-level input voltage, LREQ,

CTL0, CTL1, D0–D7

Low-level input voltage, C/LKON2,

PC0–PC2, ISO, PD,

ISO = V

Low-level input voltage, RESET — — 0.3 V

Output current TPBIAS outputs –6 2.5 mA

TPA, TPB cable inputs, during data reception 118 — 260 mV TPA, TPB cable inputs, during data arbitration 168 — 265 mV

Speed signaling off or S100 speed signal

Source power node 1.165 — 2.515 V Non-source power node 1.165 — 2.015 Source power node 0.935 — 2.515 V Non-source power node 0.935 — 2.015 Source power node 0.523 — 2.515 V Non-source power node 0.523 — 2.015

IC-100

IC-200

IC-400

Power-up reset time Set by capacitor between RESET pin and GND 2 — — ms

TPA, TPB cable inputs, S100 operation — — 1.08 ns

Receive input jitter

TPA, TPB cable inputs, S200 operation — — 0.5 ns TPA, TPB cable inputs, S400 operation — — 0.315 ns

Between TPA and TPB cable inputs, S100 operation — — 0.8 ns

Receive input skew

Between TPA and TPB cable inputs, S200 operation — — 0.55 ns Between TPA and TPB cable inputs, S400 operation — — 0.5 ns

XTAL

Crystal or external clock frequency

Crystal connected according to Figure 10 or external clock input at pin XI

NOTES:

1. For a node that does not source power to the bus (see Section 4.2.2.2 in the IEEE 1394-1995 standard).

2. C/LKON is only an input when RESET

= 0.

3.0 3.6 V

0.7 V

— — V

— — —

— — 0.7 V

— — 0.2 V

—

24.5735 24.576 24.5785 MHz

2001 Sep 06

Philips Semiconductors Preliminary data

SYMBOL

PARAMETER

TEST CONDITION

UNIT

gg , ,

SYMBOL

PARAMETER

TEST CONDITION

UNIT

ZIDDifferential input impedance

Drivers disabled

ZICCommon mode input impedance

Drivers disabled

PDI1394P232-port/1-port 400 Mbps physical layer interface

10.0 CABLE DRIVER

LIMITS

MIN TYP MAX

O(diff)

OFF

NOTES:

1. Limits defined as algebraic sum of TP A+ and TPA– driver currents. Limits also apply to TPB+ and TPB– algebraic sum of driver currents.

2. Limits defined as one half of the algebraic sum of currents flowing out of TPB+ and TPB–.

11.0 CABLE RECEIVER

TH-CB

TH–SP200

TH–SP400

Differential output voltage 56 Ω load 172 — 265 mV

Drivers enabled,

Driver Difference current, TP A+, TPA–, TPB+, TPB–

Common mode speed signaling output current, TPB+, TPB–

speed signaling OFF

–0.88 — 0.88 mA

200 Mbps speed signaling enabled –4.84 — –2.53 mA 400 Mbps speed signaling enabled –12.4 — –8.10 mA

OFF state differential voltage Drivers disabled — — 20 mV

LIMITS

MIN TYP MAX

10 14 — — — 4 pF 20 — — kΩ — — 24 pF

TH-R

Receiver input threshold voltage Drivers disabled –30 — 30 mV Cable bias detect threshold, TPBn cable inputs Drivers disabled 0.6 — 1.0 V

TH+

TH–

Positive arbitration comparator input threshold voltage

Negative arbitration comparator input threshold voltage

Speed signal input threshold

Speed signal input threshold Connect detect output at TPBIAS pins Drivers disabled — — –76 µA

Drivers disabled 89 — 168 mV

Drivers disabled –168 — –89 mV TPBIAS–TPA common mode voltage,

drivers disabled 200 Mbps TPBIAS–TPA common mode voltage,

drivers disabled 400 Mbps

49 — 131 mV

314 — 396 mV

kΩ

2001 Sep 06

Philips Semiconductors Preliminary data

CTL1, D0 D7, SYSCLK, CNA

g, ,

VOHHigh-level output voltage, pin C/LKON

PDI1394P232-port/1-port 400 Mbps physical layer interface

12.0 OTHER DEVICE I/O

SYMBOL PARAMETER TEST CONDITION MIN TYP MAX UNIT

See Note 1 — 81 — mA

DD–PD

BH+

BH–

RST-UP

RST-DN

IT+

IT–

LIT+

LIT–

Supply current

Supply current in power down mode PD = VDD in power down mode — 150 — µA

Cable power status threshold voltage

High-level output voltage, pins CTL0,

–

Low-level output voltage, pins CTL0, CTL1, D0–D7, CNA, SYSCLK

Low-level output voltage, pin C/LKON VDD = 2.7 V, IOL = 4 mA; See Note 4 — — 0.3 V Positive peak bus holder current, pins

CTL0, CTL1, D0–D7, LREQ Negative peak bus holder current, pins

CTL0, CTL1, D0–D7, LREQ Input current, pins LREQ, LPS, PD,

TEST0, BRIDGE, PC0–PC2 Off-state current, pins CTL0, CTL1,

D0–D7, C/LKON Pullup current, RESET input VI = 1.5 V or 0 V –90 — –20 µA Pulldown current, RESET input VI = VDD, PD = V Positive going threshold voltage, LREQ,

CTL0, CTL1, D0–D7 inputs Negative going threshold voltage, LREQ,

CTL0, CTL1, D0–D7 inputs Positive going threshold voltage, LPS

inputs Negative going threshold voltage, LPS

inputs TPBIAS output voltage At rated IO current 1.665 — 2.015 V

NOTES:

1. Transmit Max Packet (2 ports transmitting max size isochronous packet (4096 bytes), sent on every isochronous interval, S400, data value

of 0xCCCCCCCCh), V

2. Repeat typical packet (1 port receiving DV packets on every isochronous interval, 1 port repeating the packet, S100), V

= 3.3 V, TA = 25 °C

TA = 25 °C

3. Idle (receive cycle start on one port, transmit cycle start on other port) V

4. The C/LKON pin is able to drive an isolation circuit according to Figure 5A-20 of the IEEE-1394a-2000 standard.

See Note 2 — 56 — mA See Note 3 — 50 — mA

390 kΩ resistor between cable power and CPS pin: Measured at cable power

4.7 — 7.5 V

side of resistor VDD = 2.7 V, IOH = –4 mA, ISO = V VDD >= 3.0 V, IOH = –4 mA, ISO = V

2.4 — — V

2.8 — — V Annex J: IOH = –9 mA, ISO = 0 VDD–0.4 — — V IOL = 4 mA, ISO = V

— — 0.4 V Annex J: IOL = 9 mA, ISO = 0 — — 0.4 V VDD = 2.7 V, IOH = –4 mA; See Note 4 2.4 — — V VDD >= 3.0 V, IOH = –4 mA; See Note 4 2.7 — — V

ISO = VDD, VI = 0 V to V

0.05 — 1.0 mA

–1.0 — –0.05 mA

ISO = 0 V; VDD = 3.6 V — — 5 µA

VO = VDD or 0 V –5 — 5 µA

.4 1.6 2.8 mA

ISO = 0 V VDD/2 + 0.3 — VDD/2 + 0.9 V

ISO = 0 V VDD/2 – 0.9 — VDD/2 – 0.3 V

LREF

= 0.42 x V

= 3.3 V, TA = 25 °C

— — V

+0.2 — — V

LREF

= 3.3 V,

+1 V

2001 Sep 06

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