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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Philips PDIUSBH12, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Philips PDIUSBH12 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Philips PDIUSBH12. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Philips PDIUSBH12 should contain:
- informations concerning technical data of Philips PDIUSBH12
- name of the manufacturer and a year of construction of the Philips PDIUSBH12 item
- rules of operation, control and maintenance of the Philips PDIUSBH12 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Philips PDIUSBH12 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Philips PDIUSBH12, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Philips service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Philips PDIUSBH12.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Philips PDIUSBH12 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
PDIUSBH12 USB 2-port hub Product specification Supersedes data of 1999 Feb 25 1999 Jul 22 INTEGRA TED CIRCUITS[...]
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Page 2
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 2 1999 Jul 22 853-2062 22025 FEA TURES • Complies with the Universal Serial Bus specification Rev . 1.0 • Complies with the ACPI, OnNOW , and USB power management requirements • Compliant with USB Human Interface Devices and Monitor Control Class • Compliant with System M[...]
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Page 3
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 3 BLOCK DIAGRAM ANALOG T X /R X GOODLINK CONTROL ANALOG T X /R X GENERAL PORT CONTROLLER HUB REPEA TER END OF FRAME TIMERS ANALOG T X /R X PHILIPS SIE INTEGRA TED RAM BIT CLOCK RECOVERY MEMORY MANAGEMENT UNIT I 2 C SLA VE INTERFACE 12 MHz FULL SPEED INTERRUPT SDA [...]
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Page 4
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 4 Analog T ransceivers These transceivers interface directly to the USB cables through some termination resistors. They are capable of transmitting and receiving serial data at both “full speed” (12 Mbit/s) and “low speed” (1.5 Mbit/s) data rates. Hub Repeater[...]
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Page 5
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 5 ENDPOINT DESCRIPTIONS There are two endpoint configuration modes supported by the PDIUSBH12, the Single Embedded Function mode and the Multiple (3) Embedded Function mode. The Single Embedded Function mode is the default at power up reset. The Multiple (3) Embedded [...]
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Page 6
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 6 PINNING The PDIUSBH12 has two modes of operation. The first mode (Mode 0) configures the pins DNx_GL_N for GoodLink LED indication. The second mode (Mode 1) configures the LED pins as per port overcurrent condition pins. An overcurrent condition on any port can [...]
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Page 7
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 7 Pin description (MODE 0 – Good Link ) PIN NO. PIN SYMBOL TYPE DRIVE DESCRIPTION 1 TEST1 Input Connect to Ground for 48MHz crystal input. Connect to V CC for 12MHz crystal input. 2 TEST2 Input Connect to Ground 3 TEST3 Input Connect to Ground 4 RESET_N Input ST[...]
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Page 8
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 8 Pin description (MODE 1 – Individual Overcurrent) PIN NO PIN SYMBOL TYPE DRIVE DESCRIPTION 1 TEST1 Input Connect to V CC for 48MHz crystal input. Connect to Ground for 12MHz crystal input. 2 TEST2 Input Connect to V CC 3 TEST3 Input Connect to Ground 4 RESET_N Inp[...]
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Page 9
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 9 APPLICA TION DIAGRAM I 2 C GOODLINK LED POWER SWITCH AND OVERCURRENT CIRCUIT 5V SWITCHED 5V H12 µ C CLKOUT 12MHz USB DOWNSTREAM USB UPSTREAM 3.3V SV00853 I 2 C Interface The I 2 C bus is used to interface to an external microcontroller needed to control the ope[...]
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Page 10
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 10 COMMAND SUMMAR Y Some commands have the same command code (e.g., Read Buf fer and W rite Buffer). In these cases, the direction of the Data Phase (read or write) indicates which command is executed. COMMAND NAME RECIPIENT CODING DA T A PHASE Initialization Commands[...]
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Page 11
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 11 COMMAND DESCRIPTIONS Command Procedure There are four basic types of commands: Initialization, Data, Hub Specific, and General commands. Respectively , these are used to initialize the hub and embedded function; for data flow between the hub, embedded function, and[...]
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Page 12
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 12 Configuration Byte SV00842 POWER ON V ALUE REMOTE WAKEUP NO LAZYCLOCK CLOCK RUNNING DEBUG MODE SoftConnect CONNECT DOWNSTREAM RESISTORS NON-BLINKING LEDs 76 54 32 0 1 1 0 11 00 10 EMBEDDED FUNCTION MODE Remote W akeup A ‘1’ indicates that a remote wakeup fe[...]
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Page 13
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 13 Data Flow Commands Data flow commands are used to manage the data transmission between the USB endpoints and the monitor . Much of the data flow is initiated via an interrupt to the microcontroller . The microcontroller utilizes these commands to access and determi[...]
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Page 14
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 14 T able 3. Error codes ERROR CODE RESUL T 0000 No Error 0001 PID encoding Error; bits 7–4 are not the inversion of bits 3–0 0010 PID unknown; encoding is valid, but PID does not exist 001 1 Unexpected packet; packet is not of the type expected (= token, data or [...]
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Page 15
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 15 Set Endpoint Status Command : 40–4Dh Data : Write 1 byte A stalled control endpoint is automatically unstalled when it receives a SETUP token, regardless of the content of the packet. If the endpoint should stay in its stalled state, the microcontroller can re-st[...]
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Page 16
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 16 Get Port Status Command : E0h–E1h Data : Read 1 or 2 bytes The Get Port Status Command can be followed by one or two data reads. The first byte returned contains the port status. The second byte returned is the port status change byte. Port Status Byte SV00846 PO[...]
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Page 17
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 17 General Commands Send Resume Command : F6h Data : None Sends an upstream resume signal for 10 ms. This command is normally issued when the device is in suspend. The RESUME command is not followed by a data read or write. The PDIUSBH12 automatically sends a RESUME c[...]
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Page 18
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 18 RECOMMENDED OPERA TING CONDITIONS SYMBOL P ARAMETER TEST CONDITIONS MIN MAX UNIT V CC DC supply voltage 3.0 3.6 V V I DC input voltage range 0 5.5 V V I/O DC input voltage range for I/O 0 5.5 V V AI/O DC input voltage range for analog I/O 0 V CC V V O DC output vol[...]
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Page 19
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 19 DC CHARACTERISTICS (Digital pins) SYMBOL P ARAMETER TEST CONDITIONS MIN TYP MAX UNIT Input Levels V IL LOW level input voltage 0.6 V VIH HIGH level input voltage 2.7 V V TLH LOW to HIGH threshold voltage ST (Schmitt T rigger) pins 1.4 1.9 V V THL HIGH to LOW thresh[...]
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Page 20
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 20 AC CHARACTERISTICS (AI/O pins, FULL speed) SYMBOL P ARAMETER TEST CONDITIONS MIN MAX UNIT Driver characteristics C L = 50pF; R pu = 1.5k Ω on D+ to V CC T ransition T ime: t r Rise time Between 10% and 90% 4 20 ns t f Fall time Between 10% and 90% 4 20 ns t RFM R[...]
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Page 21
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 21 AC CHARACTERISTICS (AI/O pins, LOW speed) SYMBOL P ARAMETER TEST CONDITIONS MIN MAX UNIT Driver characteristics C L = 50pF and 350pF; R pu = 1.5k Ω on D– to V CC T ransition T ime Between 10% and 90% t Rise time C L = 50pF 75 ns t lr Rise time C L = 350pF 300 n[...]
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Page 22
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 22 CROSSOVER POINT CROSSOVER POINT CROSSOVER POINT SV00514 CROSSOVER POINT Hub Delay Downstream t HDD Hub Delay Upstream t HDD DOWNSTREAM DIFFERENTIAL DA T A UPSTREAM- DIFFERENTIAL DA T A UPSTREAM DIFFERENTIAL DA T A DOWNSTREAM- DIFFERENTIAL DA T A V DD V SS V SS A. D[...]
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Page 23
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 23 AC CHARACTERISTICS (I 2 C pins) All timing values are valid within the operating supply voltage and ambient temperature range and reference to V IL and V IH with an input voltage swing of V SS and V DD . SYMBOL P ARAMETER TEST CONDITIONS MIN MAX UNIT f SCL SCL cloc[...]
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Page 24
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 24 SO28: plastic small outline package; 28 leads; body width 7.5mm SOT136-1[...]
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Page 25
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 25 DIP28: plastic dual in-line package; 28 leads (600 mil) SOT1 17-1[...]
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Page 26
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 26 SOLDERING Introduction This text gives a very brief insight to a complex technology . A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit Packages” (document order number 9398 652 9001 1). There is no soldering m[...]
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Page 27
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 27 SUIT ABILITY OF IC P ACKAGES FOR W A VE, REFLOW AND DIPPING SOLDERING METHODS Mo nting Package Soldering Method Mo u nting Package W ave Reflow 1 Dipping Through-hole mount DBS, DIP , HDIP , SDIP , SIL suitable 2 – suitable BGA, SQFP , not suitable suitable – H[...]
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Page 28
Philips Semiconductors Product specification PDIUSBH12 USB 2-port hub 1999 Jul 22 28 Definitions Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook. Limiting values definition — Limiting v[...]