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ST-NXP Wireless 34.807IRELESS www.stnwireless.com ISP1521 Hi-Speed Universal Serial Bus hub controller Rev. 04 — 30 March 2006 Product data sheet 1. General description The ISP1521 is a stand-alone Universal Serial Bus (USB) hub controller IC that complies with Universal Serial Bus Specification Rev. 2.0. It supports data transfer at high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s). The upstream facing port can be connected to a Hi-Speed USB host or hub or to an Original USB host or hub. If the upstream facing port is connected to a Hi-Speed USB host or hub, then the ISP1521 will operate as a Hi-Speed USB hub. That is, it will support high-speed, full-speed and low-speed devices connected to its downstream facing ports. If the upstream facing port is connected to an Original USB host or hub, then the ISP1521 will operate as an Original USB hub. That is, high-speed devices that are connected to its downstream facing ports will operate in full-speed mode instead. The ISP1521 is a full hardware USB hub controller. All Original USB devices connected to the downstream facing ports are handled using a single Transaction Translator (TT), when operating in a cross-version environment. This allows the whole 480 Mbit/s upstream bandwidth to be shared by all the Original USB devices on its downstream facing ports. The ISP1521 has seven downstream facing ports. If not used, ports 3 to 7 can be disabled. The vendor ID, product ID and string descriptors on the hub are supplied by the internal ROM; they can also be supplied by an external I2C-bus EEPROM or a microcontroller. The ISP1521 is suitable for self-powered hub designs. An analog overcurrent detection circuitry is built into the ISP1521, which can also accept digital overcurrent signals from external circuits; for example, Micrel MOSFET switch MIC2026. The circuitry can be configured to trip on a global or an individual overcurrent condition. Each port comes with two status indicator LEDs. Target applications of the ISP1521 are monitor hubs, docking stations for notebooks, internal USB hub for motherboards, hub for extending Intel Easy PCs, hub boxes, and so on. ISP1521 Philips Semiconductors Hi-Speed USB hub controller 2. Features ■ Complies with: ◆ Universal Serial Bus Specification Rev. 2.0 ◆ Advanced Configuration and Power Interface (ACPI), OnNow and USB power management requirements ■ Supports data transfer at high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s) ■ Self-powered capability ■ USB suspend mode support ■ Configurable number of ports ■ Internal Power-On Reset (POR) and low voltage reset circuit ■ Port status indicators ■ Integrates high performance USB interface device with hub handler, Philips Serial Interface Engine (SIE) and transceivers ■ Built-in overcurrent detection circuit ■ Individual or ganged power switching, individual or global overcurrent protection, and nonremovable port support by I/O pins configuration ■ Simple I2C-bus (master or slave) interface to read device descriptor parameters, language ID, manufacturer ID, product ID, serial number ID and string descriptors from a dedicated external EEPROM, or to allow the microcontroller to set up hub descriptors ■ Visual USB traffic monitoring (GoodLink) for the upstream facing port ■ Uses 12 MHz crystal oscillator with on-chip Phase-Locked Loop (PLL) for low ElectroMagnetic Interference (EMI) ■ Supports temperature range from −40 °C to +70 °C ■ Available in LQFP80 package 3. Applications ■ ■ ■ ■ ■ Monitor hubs Docking stations for notebooks Internal hub for USB motherboards Hub for extending Easy PCs Hub boxes 4. Ordering information Table 1. Ordering information Type number ISP1521BE Package Name Description Version LQFP80 plastic low profile quad flat package; 80 leads; body 12 × 12 × 1.4 mm SOT315-1 ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 2 of 55 xxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx x xxxxxxxxxxxxxx xxxxxxxxxx xxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxx xxxxxxxxxxxxxx xxxxxx xx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxx xxxxx x x RREF DM0 DP0 3 4 12 MHz XTAL1 5 7 XTAL2 42 43 PLL VCC1 VCC2 VCC3 VCC4 RAM ROM 11, 50 17, 56 ANALOG TRANSCEIVER ORIGINAL USB HI-SPEED USB PHILIPS PIE 30, 70 I2C-bus BIT CLOCK RECOVERY 80 I2C-BUS CONTROLLER 13, 52 79 TRANSACTION TRANSLATOR 40 HUB CONTROLLER PHILIPS SIE Rev. 04 — 30 March 2006 GND 2, 6, 8, 12, 14, 18, 29, 44, 47, 51, 53, 57, 71 HUB REPEATER ORIGINAL USB HI-SPEED USB MINI-HOST CONTROLLER 78 1 SCL RESET_N HUBGL_N SUSPEND ISP1521 41 PORT CONTROLLER 60 ROUTING LOGIC VREF(5V0) SDA Philips Semiconductors RPU 5. Block diagram ISP1521_4 Product data sheet upstream port 0 ADOC NOOC 31, 69 PORT 1 ANALOG TRANSCEIVER ORIGINAL USB HI-SPEED USB PORTS 2 to 6 POWER SWITCH PORT 7 ANALOG TRANSCEIVER ORIGINAL USB HI-SPEED USB OVERCURRENT DETECTION 19 DM1 20 DP1 23 PSW1_N 72 LINK LEDS 73 48 AMB1_N DM7 GRN1_N 49 DP7 36 65 66 PSW7_N AMB7_N OC7_N downstream port 2 to port 6 37 downstream port 7 GRN7_N mld710 ISP1521 OC1_N downstream port 1 Fig 1. Block diagram 24 OVERCURRENT DETECTION Hi-Speed USB hub controller 3 of 55 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. LINK LEDS POWER SWITCH ISP1521 Philips Semiconductors Hi-Speed USB hub controller 6. Pinning information 61 GRN4_N 62 AMB4_N 63 GRN3_N 64 AMB3_N 65 GRN7_N 66 AMB7_N 67 GRN2_N 68 AMB2_N 69 VREF(5V0) 70 VCC3 71 GND 72 GRN1_N 73 AMB1_N 74 GRN6_N 75 AMB6_N 76 GRN5_N 77 AMB5_N 78 HUBGL_N 79 SCL 80 SDA 6.1 Pinning SUSPEND 1 60 NOOC GND 2 59 DP4 DM0 3 58 DM4 DP0 4 57 GND RPU 5 56 VCC2 GND 6 55 DP3 RREF 7 54 DM3 GND 8 53 GND DM5 9 52 VCC4 DP5 10 51 GND ISP1521BE VCC1 11 50 VCC1 RESET_N 40 PSW2_N 39 OC2_N 38 PSW7_N 37 OC7_N 36 PSW3_N 35 OC3_N 34 PSW4_N 33 OC4_N 32 VREF(5V0) 31 VCC3 30 41 ADOC GND 29 42 XTAL1 DP1 20 PSW5_N 28 43 XTAL2 DM1 19 OC5_N 27 44 GND GND 18 PSW6_N 26 45 DM2 VCC2 17 OC6_N 25 46 DP2 DP6 16 PSW1_N 24 47 GND DM6 15 OC1_N 23 48 DM7 GND 14 TEST_LOW 21 49 DP7 VCC4 13 TEST_HIGH 22 GND 12 mld712 Fig 2. Pin configuration 6.2 Pin description Table 2. Pin description Symbol[1] Pin Type Description[2] SUSPEND 1 I/O connect to ground through a 100 kΩ resistor GND 2 - ground supply DM0 3 AI/O upstream facing port 0 D− connection (analog) DP0 4 AI/O upstream facing port 0 D+ connection (analog) RPU 5 AI pull-up resistor connection; connect this pin through a resistor of 1.5 kΩ ± 5 % to 3.3 V GND 6 - ground supply ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 4 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 2. Pin description …continued Symbol[1] Pin Type Description[2] RREF 7 AI reference resistor connection; connect this pin through a resistor of 12 kΩ ± 1 % to an analog band gap ground reference GND 8 - ground supply DM5 9 AI/O downstream facing port 5 D− connection (analog)[3] DP5 10 AI/O downstream facing port 5 D+ connection (analog)[3] VCC1 11 - supply voltage 1 (3.3 V) (analog) GND 12 - ground supply VCC4 13 - supply voltage 4 (3.3 V) (crystal and PLL) GND 14 - ground supply DM6 15 AI/O downstream facing port 6 D− connection (analog)[3] DP6 16 AI/O downstream facing port 6 D+ connection (analog)[3] VCC2 17 - supply voltage 2 (3.3 V) (transceiver) GND 18 - ground supply DM1 19 AI/O downstream facing port 1 D− connection (analog)[4] DP1 20 AI/O downstream facing port 1 D+ connection (analog)[4] TEST_LOW 21 - connect to GND TEST_HIGH 22 - connect to 5.0 V through a 10 kΩ resistor OC1_N 23 AI/I overcurrent sense input for downstream facing port 1 (analog/digital) PSW1_N 24 I/O output — power switch control output (open-drain) with an internal pull-up resistor for downstream facing port 1 input — function of the pin when used as an input is given in Table 5 OC6_N 25 AI/I overcurrent sense input for downstream facing port 6 (analog/digital) PSW6_N 26 I/O output — power switch control output (open-drain) with an internal pull-up resistor for downstream facing port 6 input — function of the pin when used as an input is given in Table 5 OC5_N 27 AI/I overcurrent sense input for downstream facing port 5 (analog/digital) PSW5_N 28 I/O output — power switch control output (open-drain) with an internal pull-up resistor for downstream facing port 5 input — function of the pin when used as an input is given in Table 5 GND 29 - ground supply VCC3 30 - supply voltage 3 (3.3 V) (digital) VREF(5V0) 31 - reference voltage (5 V ± 5 %); used to power internal pull-up resistors of PSWn_N pins and also for the analog overcurrent detection OC4_N 32 AI/I overcurrent sense input for downstream facing port 4 (analog/digital) ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 5 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 2. Pin description …continued Symbol[1] Pin Type Description[2] PSW4_N 33 I/O output — power switch control output (open-drain) with an internal pull-up resistor for downstream facing port 4 input — function of the pin when used as an input is given in Table 5 OC3_N 34 AI/I overcurrent sense input for downstream facing port 3 (analog/digital) PSW3_N 35 I/O output — power switch control output (open-drain) with an internal pull-up resistor for downstream facing port 3 input — function of the pin when used as an input is given in Table 5 OC7_N 36 AI/I overcurrent sense input for downstream facing port 7 (analog/digital) PSW7_N 37 I/O output — power switch control output (open-drain) with an internal pull-up resistor for downstream facing port 7 input — function of the pin when used as an input is given in Table 5 OC2_N 38 AI/I overcurrent sense input for downstream facing port 2 (analog/digital) PSW2_N 39 I/O output — power switch control output (open-drain) with an internal pull-up resistor for downstream facing port 2 input — function of the pin when used as an input is given in Table 5 RESET_N 40 I asynchronous reset input; when reset is active, the internal switch to the 1.5 kΩ external resistor is opened, and all pins DPn and DMn are 3-state; it is recommended that you connect to any one of the 3.3 V VCC pins through an RC circuit; refer to the schematics in ISP1521 Hub Demo Board User’s Guide ADOC 41 I analog or digital overcurrent detect selection input; LOW selects digital mode and HIGH (3.3 V or 5.0 V) selects analog mode XTAL1 42 I crystal oscillator input (12 MHz) XTAL2 43 O crystal oscillator output (12 MHz) GND 44 - ground supply DM2 45 AI/O downstream facing port 2 D− connection (analog)[4] DP2 46 AI/O downstream facing port 2 D+ connection (analog)[4] GND 47 - ground supply DM7 48 AI/O downstream facing port 7 D− connection (analog)[3] DP7 49 AI/O downstream facing port 7 D+ connection (analog)[3] VCC1 50 - supply voltage 1 (3.3 V) (analog) GND 51 - ground supply VCC4 52 - supply voltage 4 (3.3 V) (crystal and PLL) GND 53 - ground supply DM3 54 AI/O downstream facing port 3 D− connection (analog)[3] DP3 55 AI/O downstream facing port 3 D+ connection (analog)[3] VCC2 56 - supply voltage 2 (3.3 V) (transceiver) GND 57 - ground supply ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 6 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 2. Pin description …continued Symbol[1] Pin Type Description[2] DM4 58 AI/O downstream facing port 4 D− connection (analog)[3] DP4 59 AI/O downstream facing port 4 D+ connection (analog)[3] NOOC 60 I no overcurrent protection selection input; connect this pin to HIGH (3.3 V) to select no overcurrent protection; if no overcurrent is selected, all OC_N pins must be connected to VREF(5V0) GRN4_N 61 I/O output — green LED port indicator (open-drain) for downstream facing port 4 input — function of the pin when used as an input is given in Table 9 AMB4_N 62 I/O output — amber LED port indicator (open-drain) for downstream facing port 4 input — function of the pin when used as an input is given in Table 8 GRN3_N 63 I/O output — green LED port indicator (open-drain) for downstream facing port 3 input — function of the pin when used as an input is given in Table 9 AMB3_N 64 I/O output — amber LED port indicator (open-drain) for downstream facing port 3 input — function of the pin when used as an input is given in Table 8 GRN7_N 65 I/O output — green LED port indicator (open-drain) for downstream facing port 7 input — function of the pin when used as an input is given in Table 9 AMB7_N 66 I/O output — amber LED port indicator (open-drain) for downstream facing port 7 input — function of the pin when used as an input is given in Table 8 GRN2_N 67 I/O output — green LED port indicator (open-drain) for downstream facing port 2 input — function of the pin when used as an input is given in Table 9 AMB2_N 68 I/O output — amber LED port indicator (open-drain) for downstream facing port 2 input — function of the pin when used as an input is given in Table 8 VREF(5V0) 69 - reference voltage (5 V ± 5 %); used to power internal pull-up resistors of PSWn_N pins and also for the analog overcurrent detection VCC3 70 - supply voltage 3 (3.3 V) (digital) GND 71 - ground supply GRN1_N 72 I/O output — green LED port indicator (open-drain) for downstream facing port 1 input — function of the pin when used as an input is given in Table 9 ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 7 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 2. Pin description …continued Symbol[1] Pin Type Description[2] AMB1_N 73 I/O output — amber LED port indicator (open-drain) for downstream facing port 1 input — function of the pin when used as an input is given in Table 8 GRN6_N 74 I/O output — green LED port indicator (open-drain) for downstream facing port 6 input — function of the pin when used as an input is given in Table 9 AMB6_N 75 I/O output — amber LED port indicator (open-drain) for downstream facing port 6 input — function of the pin when used as an input is given in Table 8 GRN5_N 76 I/O output — green LED port indicator (open-drain) for downstream facing port 5 input — function of the pin when used as an input is given in Table 9 AMB5_N 77 I/O output — amber LED port indicator (open-drain) for downstream facing port 5 input — function of the pin when used as an input is given in Table 8 HUBGL_N 78 O hub GoodLink LED indicator output; the LED is off until the hub is configured; a transaction between the host and the hub will blink the LED off for 100 ms; this LED is off in suspend mode (open-drain) SCL 79 I/O I2C-bus clock (open-drain); see Table 11 SDA 80 I/O I2C-bus data (open-drain); see Table 11 [1] Symbol names ending with underscore N (for example, NAME_N) represent active LOW signals. [2] The maximum current the ISP1521 can sink on a pin is 8 mA. [3] To disable a downstream port n, connect both pins DPn and DMn to VCC (3.3 V); unused ports must be disabled in reverse order starting from port 7. [4] Downstream ports 1 and 2 cannot be disabled. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 8 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 7. Functional description 7.1 Analog transceivers The integrated transceivers directly interface to USB lines. They can transmit and receive serial data at high-speed (480 Mbit/s), full-speed (12 Mbit/s) and low-speed (1.5 Mbit/s). 7.2 Hub controller core The main components of the hub core are: • • • • • • • • Philips Serial Interface Engine (SIE) Routing logic Transaction Translator (TT) Mini-Host Controller Hub repeater Hub controller Port controller Bit clock recovery. 7.2.1 Philips serial interface engine The Philips Serial Interface Engine (SIE) implements the full USB protocol layer. It is completely hardwired for speed and needs no firmware intervention. The functions of this block include: synchronization, pattern recognition, parallel or serial conversion, bit (de-)stuffing, CRC checking and generation, Packet IDentifier (PID) verification and generation, address recognition, and handshake evaluation and generation. 7.2.2 Routing logic The routing logic directs signaling to appropriate modules (mini-Host Controller, Original USB repeater and Hi-Speed USB repeater) according to the topology in which the hub is placed. 7.2.3 Transaction translator The Transaction Translator (TT) acts as a go-between mechanism that links devices operating in Original USB mode and Hi-Speed USB upstream mode. For the ‘IN’ direction, data is concatenated in TT buffers till the proper length is reached, before the host takes the transaction. In the reverse direction (OUT), the mini-host dispenses the data contained in TT buffers over a period that fits into the Original USB bandwidth. This continues until all outgoing data is emptied. TT buffers are used only on split transactions. 7.2.4 Mini-Host Controller The internal mini-host generates all the Original USB IN, OUT or SETUP tokens for the downstream facing ports, while the upstream facing port is in high-speed mode. The responses from the Original USB devices are collected in TT buffers, until the end of the complete split transaction clears TT buffers. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 9 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 7.2.5 Hub repeater A hub repeater manages connectivity on a per packet basis. It implements packet signaling connectivity and resume connectivity. There are two repeaters in the ISP1521: a Hi-Speed USB repeater and an Original USB repeater. The only major difference between these two repeaters is the speed at which they operate. When the hub is connected to an Original USB system, it automatically switches itself to function as an Original USB hub. 7.2.6 Hub and port controllers The hub controller provides status report. The port controller provides control for individual downstream facing ports; it controls the port routing module. Any port status change will be reported to the host using the hub status change (interrupt) endpoint. 7.2.7 Bit clock recovery The bit clock recovery circuit extracts the clock from the incoming USB data stream. 7.3 Phase-locked loop clock multiplier A 12 MHz-to-480 MHz clock multiplier Phase-Locked Loop (PLL) is integrated on-chip. This allows the use of low-cost 12 MHz crystals. The low crystal frequency also minimizes EMI. No external components are required for the operation of the PLL. 7.4 I2C-bus controller A simple serial I2C-bus interface is provided to transfer vendor ID, product ID and string descriptor from an external I2C-bus EEPROM or microcontroller. A master/slave I2C-bus protocol is implemented according to the timing requirements as mentioned in I2C-bus standard specifications. The maximum data count during I2C-bus transfers for the ISP1521 is 256 B. 7.5 Overcurrent detection circuit An overcurrent detection circuit is integrated on-chip. The main features of this circuit are: self reporting, automatic resetting, low-trip time and low cost. This circuit offers an easy solution at no extra hardware cost on the board. 7.6 GoodLink Indication of a good USB connection is provided through the GoodLink technology. An LED can be directly connected to pin HUBGL_N through an external 330 Ω resistor. During enumeration, the LED momentarily blinks on. After successful configuration, the LED blinks off for 100 ms upon each transaction. This feature provides a user-friendly indication of the status of the hub, the connected downstream devices, and the USB traffic. It is a useful diagnostics tool to isolate faulty USB equipment, and helps to reduce field support and hotline costs. 7.7 Power-on reset The ISP1521 has an internal Power-On Reset (POR) circuit. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 10 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller The triggering voltage of the POR circuit is 2.03 V nominal. A POR is automatically generated when VCC goes below the trigger voltage for a duration longer than 1 µs. POR VCC 2.03 V ≤ 683 µs 0V t1 004aaa388 At t1: clock is running and available. Fig 3. Power-on reset timing POR EXTERNAL CLOCK 004aaa365 A Stable external clock is to be available at A. Fig 4. External clock with respect to power-on reset ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 11 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 8. Configuration selections The ISP1521 is configured through I/O pins and, optionally, through an external I2C-bus, in which case the hub can update its configuration descriptors as a master or as a slave. Table 3 shows configuration parameters. Table 3. Configuration parameters Mode and selection Option Configuration method Pin control Number of downstream 2 ports facing ports 3 ports Software control Control pin Reference Affected field Reference DM1/DP1 to DM7/DP7 see Section 8.1.1 bNbrPorts0 see Table 22 PSW1_N to PSW7_N see Section 8.1.2 wHubCharacteristics: bits D1 and D0 see Table 22 4 ports 5 ports 6 ports 7 ports Power switching mode none ganged bPwrOn2PwrGood: time interval multiple ganged[1] individual Overcurrent protection mode none global[2] multiple ganged NOOC and OC1_N to OC7_N see Section 8.1.3 wHubCharacteristics: bits D4 and D3 AMBn_N see Section 8.1.4 wHubCharacteristics: see Table 22 bit D2 (compound hub) see Table 22 individual Nonremovable ports any port can be nonremovable DeviceRemovable: bit map Port indicator support no all GRNn_N see Section 8.1.5 yes wHubCharacteristics: bit D7 see Table 22 [1] Multiple ganged power mode is reported as individual power mode; refer to Universal Serial Bus Specification Rev. 2.0. [2] When the hub uses global overcurrent protection mode, the overcurrent indication is through wHubStatus field bit 1 (overcurrent) and the corresponding change bit (overcurrent change). ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 12 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 8.1 Configuration through I/O pins 8.1.1 Number of downstream facing ports To discount a physical downstream facing port, connect pins DP and DM of that downstream facing port to VCC (3.3 V) starting from the highest port number (7); see Table 4. The sum of physical ports configured is reflected in the bNbrPorts field. Table 4. Downstream facing port number pin configuration Number of physical downstream facing port DM1/DP1 DM2/DP2 DM3/DP3 DM4/DP4 DM5/DP5 DM6/DP6 DM7/DP7 7 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 6 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down VCC 5 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down VCC VCC 4 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down VCC VCC VCC 3 15 kΩ pull-down 15 kΩ pull-down 15 kΩ pull-down VCC VCC VCC VCC 2 15 kΩ pull-down 15 kΩ pull-down VCC VCC VCC VCC VCC 8.1.2 Power switching Power switching of downstream ports can be done individually or ganged, where all ports are simultaneously switched with one power switch. The ISP1521 supports both modes, which can be selected using input PSWn_N; see Table 5. 8.1.2.1 Voltage drop requirements Self-powered hubs are required to provide a minimum of 4.75 V to its output port connectors at all legal load conditions. To comply with Underwriters Laboratory Inc. (UL) safety requirements, the power from any port must be limited to 25 W (5 A at 5 V). Overcurrent protection may be implemented on a global or individual basis. Assuming a 5 V ± 3 % power supply, the worst-case supply voltage is 4.85 V. This only allows a voltage drop of 100 mV across the hub Printed-Circuit Board (PCB) to each downstream connector. This includes a voltage drop across the: • • • • Power supply connector Hub PCB (power and ground traces, ferrite beads) Power switch (FET on-resistance) Overcurrent sense device The PCB resistance and power supply connector resistance may cause a drop of 25 mV, leaving only 75 mV as the voltage drop allowed across the power switch and overcurrent sense device. Individual voltage drop components are shown in Figure 5. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 13 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller For global overcurrent detection, an increased voltage drop is needed for the overcurrent sense device (in this case, a low-ohmic resistor). This can be realized by using a special power supply of 5.1 V ± 3 %, as shown in Figure 6. The PCB resistance may cause a drop of 25 mV, which leaves 75 mV for the power switch and overcurrent sense device. voltage drop 75 mV 5V + POWER SUPPLY ± 3 % regulated − voltage drop 25 mV 4.85 V (min) 4.75 V (min) hub board resistance(1) VBUS D+ downstream port connector D− low-ohmic ISP1521 power switch PMOS switch (PSWn_N) GND SHIELD 004aaa264 (1) Includes PCB traces, ferrite beads, and so on. Fig 5. Typical voltage drop components in self-powered mode using individual overcurrent detection voltage drop 75 mV 5.1 V KICK-UP + POWER SUPPLY ± 3 % regulated − voltage drop 25 mV 4.75 V(min) voltage drop 4.95 V(min) 100 mV low-ohmic sense resistor for overcurrent detection hub board resistance(1) ISP1521 power switch (PSWn_N) VBUS D+ D− low-ohmic PMOS switch GND downstream port connector SHIELD 004aaa265 (1) Includes PCB traces, ferrite beads, and so on. Fig 6. Typical voltage drop components in self-powered mode using global overcurrent detection PSWn_N pins have integrated weak pull-up resistors inside the chip. Table 5. Power switching mode: pin configuration Power switching mode PSW1_N PSW2_N PSW3_N PSW4_N PSW5_N PSW6_N PSW7_N None ground ground ground ground ground ground ground Ganged internal pull-up ground ground ground ground ground ground Individual internal pull-up internal pull-up internal pull-up internal pull-up internal pull-up internal pull-up internal pull-up 8.1.3 Overcurrent protection mode The ISP1521 supports all overcurrent protection modes: none, global and individual. No overcurrent protection mode reporting is selected when pin NOOC = HIGH. Global and individual overcurrent protection modes are selected using pins PSWn_N, following power switching modes selection scheme; see Table 6. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 14 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller For global overcurrent protection mode, only PSW1_N and OC1_N are active; that is, in this mode, the remaining overcurrent indicator pins are disabled. To inhibit the analog overcurrent detection, OC_N pins must be connected to VREF(5V0). Table 6. Overcurrent protection mode pin configuration Power switching mode NOOC PSW1_N PSW2_N PSW3_N PSW4_N PSW5_N PSW6_N PSW7_N None HIGH ground ground ground ground ground ground ground Global LOW internal pull-up ground ground ground ground ground ground Individual LOW internal pull-up internal pull-up internal pull-up internal pull-up internal pull-up internal pull-up internal pull-up Both analog and digital overcurrent modes are supported; see Table 7. For digital overcurrent detection, the normal digital TTL level is accepted on overcurrent input pins. For analog overcurrent detection, the threshold is given in Section 14. In this mode, to filter out false overcurrent conditions because of in rush and spikes, a dead time of 15 ms is built into the IC, that is, overcurrent must persist for 15 ms before it is reported to the host. Table 7. Overcurrent detection mode selection pin configuration Pin ADOC Mode selection Description 3.3 V or 5.0 V analog threshold ∆Vtrip Ground digital normal digital TTL level 8.1.4 Nonremovable port A nonremovable port, by definition, is a port that is embedded inside the hub application box and is not externally accessible. The LED port indicators (pins AMBn_N) of such a port are not used. Therefore, the corresponding amber LED port indicators are disabled to signify that the port is nonremovable; see Table 8. More than one nonremovable port can be specified by appropriately connecting the corresponding amber LED indicators. At least one port should, however, be left as a removable port. The detection of any nonremovable port sets the hub descriptor to a compound hub. Table 8. Nonremovable port pin configuration AMBn_N (n = 1 to 7) Nonremovable port Ground nonremovable Pull-up with amber LED removable 8.1.5 Port indicator support The port indicator support can be disabled by grounding all green port indicators (all pins GRNn_N); see Table 9. This is a global feature. You cannot disable port indicators for only one port. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 15 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 9. Port indicator support: pin configuration GRN1_N to GRN7_N Port indicator support Ground not supported LED pull-up green LED for at least one port supported 8.2 Device descriptors and string descriptors settings using I2C-bus 8.2.1 Background information on I2C-bus The I2C-bus is suitable for bidirectional communication between ICs or modules. It consists of two bidirectional lines: SDA for data signals, and SCL for clock signals. Both these lines must be connected to a positive supply voltage through a pull-up resistor. The basic I2C-bus protocol is defined as: • Data transfer is initiated only when the bus is not busy. • Changes in the data line occur when the clock is LOW, and must be stable when the clock is HIGH. Any changes in data lines when the clock is HIGH will be interpreted as control signals. 8.2.1.1 Different conditions on I2C-bus The I2C-bus protocol defines the following conditions: Not busy — both SDA and SCL remain HIGH. START — a HIGH-to-LOW transition on SDA, while SCL is HIGH. STOP — a LOW-to-HIGH transition on SDA, while SCL is HIGH. Data valid — after a START condition, data on SDA must be stable for the duration of the HIGH period of SCL. 8.2.1.2 Data transfer The master initiates each data transfer using a START condition and terminates it by generating a STOP condition. To facilitate the next byte transfer, each byte of data must be acknowledged by the receiver. The acknowledgment is done by pulling the SDA line LOW on the ninth bit of the data. An extra clock pulse must be generated by the master to accommodate this bit. For details on the operation of the bus, refer to The I2C-bus specification. 8.2.1.3 I2C-bus address The address of the ISP1521 is given in Table 10. Table 10. Bit Value I2C-bus slave address MSB Slave address LSB A7 A6 A5 A4 A3 A2 A1 0 0 1 1 0 1 0 ISP1521_4 Product data sheet Write 0 © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 16 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 8.2.2 Architecture of configurable hub descriptors MICROCONTROLLER SERIAL EEPROM I2C-bus signature match MASTER/SLAVE I2C-BUS INTERFACE RAM (256 B) DESCRIPTOR GENERATOR INTERFACE HUB CORE MUX ROM (256 B) mld711 The I2C-bus cannot be shared between the EEPROM and the external microcontroller. Fig 7. Configurable hub descriptors The configurable hub descriptors can be masked in the internal ROM memory; see Figure 7. These descriptors can also be supplied from an external EEPROM or a microcontroller. The ISP1521 implements both the master and slave I2C-bus controllers. The information from the external EEPROM or the microcontroller is transferred into the internal RAM during the power-on reset. A signature word is used to identify correct descriptors. If the signature matches, the content of the RAM is chosen instead of the ROM. When external microcontroller mode is selected and while the external microcontroller is writing to the internal RAM, any request to configurable descriptors will be responded to with a Not AcKnowledge (NAK). There is no specified time-out period for the NAK signal. This data is then passed to the host during the enumeration process. The three configuration methods are selected by connecting pins SCL and SDA in the manner given in Table 11. Table 11. Configuration method Configuration method SCL SDA Internal ROM ground ground External EEPROM 2.2 kΩ-to-4.7 kΩ pull-up 2.2 kΩ-to-4.7 kΩ pull-up External microcontroller driven LOW by the microcontroller during reset 2.2 kΩ-to-4.7 kΩ pull-up ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 17 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 8.2.3 ROM or EEPROM map 00h Signature 02h Device Descriptor 0Ah Language ID 10h String Descriptor (first Language ID): iManufacturer string iProduct string iSerial Number string 7Fh 80h FFh String Descriptor (second Language ID): iManufacturer string iProduct string iSerial Number string mld714 Fig 8. ROM or EEPROM map Remark: A 128 B EEPROM supports one language ID only, and a 256 B EEPROM supports two language IDs. 8.2.4 ROM or EEPROM detailed map Table 12. ROM or EEPROM detailed map Address Content (hex) Default (hex) Example (hex) Comment signature to signify valid data comment Signature descriptor 00 signature (low) 55 - 01 signature (high) AA - Device descriptor 02 idVendor (low) CC - 03 idVendor (high) 04 - Philips Semiconductors vendor ID 04 idProduct (low) 21 - 05 idProduct (high) 15 - 06 bcdDevice (low) 00 - 07 bcdDevice (high) 02 - 08 RSV, iSN, iP, iM - 00 if all the three strings are supported, the value of this byte is 39h 09 reserved - FF - - 06 two language ID support STRING LANGID code zero (first language ID) (English USA in this example) ISP1521 product ID device release; silicon revision increments this value String descriptor Index 0 (language ID) 0A bLength[1] 0B bDescriptorType - 03[2] 0C wLANGID[0] - 09 - 04 - 09 - 08 0D 0E 0F wLANGID[1] ISP1521_4 Product data sheet LANGID code one (second language ID) (English UK in this example) © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 18 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 12. ROM or EEPROM detailed map …continued Address Content (hex) Default (hex) Example (hex) Comment String descriptor Index 1 (iManufacturer)[3] 10 bLength - 2E string descriptor length (manufacturer ID) STRING 11 bDescriptorType - 03[2] 12 13 bString - 50 00 P of Philips 14 15 - 68 00 h 16 17 - 69 00 i 18 19 - 6C 00 l 1A 1B - 69 00 i 1C 1D - 70 00 p 1E 1F - 73 00 s 20 21 - 20 00 22 23 - 53 00 S of Semiconductors 24 25 - 65 00 e 26 27 - 6D 00 m 28 29 - 69 00 i 2A 2B - 63 00 c 2C 2D - 6F 00 o 2E 2F - 6E 00 n 30 31 - 64 00 d 32 33 - 75 00 u 34 35 - 63 00 c 36 37 - 74 00 t 38 39 - 6F 00 o 3A 3B - 72 00 r 3C 3D - 73 00 s String descriptor Index 2 (iProduct) 3E bLength - 10 string descriptor length (product ID) 3F bDescriptorType - 03[2] STRING 40 41 bString - 49 00 I of ISP1521 42 43 - 53 00 S 44 45 - 50 00 P 46 47 - 31 00 1 48 49 - 35 00 5 4A 4B - 32 00 2 4C 4D - 31 00 1 String descriptor Index 3 (iSerialNumber) Remark: If supported, this string must be unique. 4E bLength - 3A string descriptor length (serial number) 4F bDescriptorType - 03[2] STRING 50 51 bString - 39 00 9 of 947337877678 = wired support ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 19 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 12. ROM or EEPROM detailed map …continued Address Content (hex) Default (hex) Example (hex) Comment 52 53 - 34 00 4 54 55 - 37 00 7 56 57 - 33 00 3 58 59 - 33 00 3 5A 5B - 37 00 7 5C 5D - 38 00 8 5E 5F - 37 00 7 60 61 - 37 00 7 62 63 - 36 00 6 64 65 - 37 00 7 66 67 - 38 00 8 68 69 - 20 00 6A 6B - 3D 00 6C 6D - 20 00 = 6E 6F - 77 00 w 70 71 - 69 00 i 72 73 - 72 00 r 74 75 - 65 00 e 76 77 - 64 00 d 78 79 - 20 00 7A 7B - 73 00 s 7C 7D - 75 00 u 7E 7F - 70 00 p 80 81 - 70 00 p 82 83 - 6F 00 o 84 85 - 72 00 r 86 87 - 74 00 t String descriptor Index 1 (iManufacturer) second language 88 bLength - 2E string descriptor length (manufacturer ID) STRING 89 bDescriptorType - 03[2] 8A 8B bString - 50 00 P of Philips 8C 8D - 68 00 h 8E 8F - 69 00 i 90 91 - 6C 00 l 92 93 - 69 00 i 94 95 - 70 00 p 96 97 - 73 00 s 98 99 - 20 00 9A 9B - 53 00 S of Semiconductors 9C 9D - 65 00 e ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 20 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 12. ROM or EEPROM detailed map …continued Address Content (hex) Default (hex) Example (hex) Comment 9E 9F - 6D 00 m A0 A1 - 69 00 i A2 A3 - 63 00 c A4 A5 - 6F 00 o A6 A7 - 6E 00 n A8 A9 - 64 00 d AA AB - 75 00 u AC AD - 63 00 c AE AF - 74 00 t B0 B1 - 6F 00 o B2 B3 - 72 00 r B4 B5 - 73 00 s - 10[1] string descriptors (product ID) STRING String descriptor Index 2 (iProduct) B6 bLength B7 bDescriptorType - 03[2] B8 B9 bString - 49 00 I of ISP1521 BA BB - 53 00 S BC BD - 50 00 P BE BF - 31 00 1 C0 C1 - 35 00 5 C2 C3 - 32 00 2 C4 C5 - 31 00 1 String descriptor Index 3 (iSerialNumber) C6 bLength - 16[1] string descriptors (serial number) STRING C7 bDescriptorType - 03[2] C8 C9 bString - 36 00 6 of 6568824022 CA CB - 35 00 5 CC CD - 36 00 6 CE CF - 38 00 8 D0 D1 - 38 00 8 D2 D3 - 32 00 2 D4 D5 - 34 00 4 D6 D7 - 30 00 0 D8 D9 - 32 00 2 DA DB - 32 00 2 DC DD - FF FF DE DF - FF FF E0 E1 - FF FF E2 E3 - FF FF E4 E5 - FF FF ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 21 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 12. ROM or EEPROM detailed map …continued Address Content (hex) Default (hex) Example (hex) E6 E7 - FF FF E8 E9 - FF FF EA EB - FF FF EC ED - FF FF EE EF - FF FF F0 F1 - FF FF F2 F3 - FF FF F4 F5 - FF FF F6 F7 - FF FF F8 F9 - FF FF FA FB - FF FF FC FD - FF FF FE - FF FF - FF upper boundary of all string descriptors [1] If this string descriptor is not supported, this bLength field must be programmed with value 02h. [2] If this string descriptor is not supported, this bDescriptorType field must be used (programmed with any value, for example, 03h). [3] String descriptor index (iManufacturer) starts from address 0Eh for one language ID support and 10h for two languages ID support. ISP1521_4 Product data sheet Comment © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 22 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 9. Hub controller description Each USB device is composed of several independent logic endpoints. An endpoint acts as a terminus of communication flow between the host and the device. At design time, each endpoint is assigned a unique number (endpoint identifier; see Table 13). The combination of the device address (given by the host during enumeration), the endpoint number, and the transfer direction allows each endpoint to be uniquely referenced. The ISP1521 has two endpoints: endpoint 0 (control) and endpoint 1 (interrupt). Table 13. Hub endpoints Function Endpoint identifier Transfer type Hub ports 0 to 7 0 control 1 [1] interrupt Direction[1] Maximum packet size (bytes) OUT 64 IN 64 IN 1 IN: input for the USB host; OUT: output from the USB host. 9.1 Endpoint 0 According to the USB specification, all devices must implement a default control endpoint. This endpoint is used by the host to configure the USB device. It provides access to the device configuration and allows generic USB status and control access. The ISP1521 supports the following descriptor information through its control endpoint 0: • • • • • • • Device descriptor Device_qualifier descriptor Configuration descriptor Interface descriptor Endpoint descriptor Hub descriptor Other_speed_configuration descriptor The maximum packet size of this endpoint is 64 B. 9.2 Endpoint 1 Endpoint 1 can be accessed only after the hub has been configured by the host (by sending the Set Configuration command). It is used by the ISP1521 to send the status change information to the host. Endpoint 1 is an interrupt endpoint. The host polls this endpoint once every 255 ms. After the hub is configured, an IN token is sent by the host to request the port change status. If the hub detects no change in the port status, it returns a NAK to this request, otherwise the Status Change byte is sent. Table 14 shows the content of the change byte. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 23 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 14. Status Change byte: bit allocation Bit Name Value Description 0 Hub Status Change 0 no change in the hub status 1 change in the hub status detected 1 to 7 Port n Status Change 0 no change in the status of port n (n = 1 to 7) 1 change in the status of port n (n = 1 to 7) 10. Descriptors The ISP1521 hub controller supports the following standard USB descriptors: • • • • • • • Device Device_qualifier Other_speed_configuration Configuration Interface Endpoint Hub The hub returns descriptors based on the mode of operation: full-speed or high-speed. Table 15. Device descriptor Offset (bytes) Field name 0 Value (hex) Comments Full-speed High-speed bLength 12 12 descriptor length = 18 B 1 bDescriptorType 01 01 type = DEVICE 2 bcdUSB 00 00 refer to Universal Serial Bus Specification Rev. 2.0 02 02 3 4 bDeviceClass 09 09 HUB_CLASSCODE 5 bDeviceSubClass 00 00 HubSubClassCode 6 bDeviceProtocol 00 01 HubProtocolHSpeedOneTT 7 bMaxPacketSize0 40 40 packet size = 64 B 8 idVendor CC CC 04 04 Philips Semiconductors vendor ID (04CC); can be customized 21 21 the ISP1521 product ID; can be customized 15 15 00 00 9 10 idProduct 11 12 bcdDevice 13 device ID; can be customized 02 02 14 iManufacturer 01 01 can be customized 15 iProduct 02 02 can be customized 16 iSerialNumber 03 03 can be customized; this value must be unique 17 bNumConfigurations 01 01 one configuration ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 24 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 16. Device_qualifier descriptor Offset (bytes) Field name Value (hex) 0 bLength 0A 0A descriptor length = 10 B 1 bDescriptorType 06 06 type = DeviceQualifierType 2 bcdUSB 00 00 refer to Universal Serial Bus Specification Rev. 2.0 02 02 Full-speed 3 Comments High-speed 4 bDeviceClass 09 09 HUB_CLASSCODE 5 bDeviceSubClass 00 00 HubSubClassCode 6 bDeviceProtocol 00 01 HubProtocolHSpeedOneTT 7 bMaxPacketSize0 40 40 packet size = 64 B 8 bNumConfigurations 01 01 number of configurations Table 17. Other_speed_configuration descriptor Offset (bytes) Field name Value (hex) 0 bLength 09 09 descriptor length = 9 B 1 bDescriptorType 07 07 type = OtherSpeedConfigurationType 2 wTotalLength 19 19 TotalConfByte 00 00 Full-speed 3 Comments High-speed 4 bNumInterfaces 01 01 - 5 bConfigurationValue 01 01 - 6 iConfiguration 00 00 no string supported 7 bmAttributes E0 E0 self-powered A0 A0 others 8 bMaxPower 00 00 self-powered Table 18. Configuration descriptor Offset (bytes) Field name Value (hex) Comments Full-speed High-speed 0 bLength 09 09 descriptor length = 9 B 1 bDescriptorType 02 02 type = CONFIGURATION 2 wTotalLength 19 19 00 00 total length of configuration, interface and endpoint descriptors = 25 B 4 bNumInterfaces 01 01 one interface 5 bConfigurationValue 01 01 configuration value = 1 6 iConfiguration 00 00 no configuration string descriptor 7 bmAttributes E0 E0 self-powered 8 bMaxPower[1] 00 00 self-powered [1] Value in units of 2 mA. 3 ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 25 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 19. Interface descriptor Offset (bytes) Field name 0 bLength 09 09 descriptor length = 9 B 1 bDescriptorType 04 04 type = INTERFACE 2 bInterfaceNumber 00 00 - 3 bAlternateSetting 00 00 no alternate setting 4 bNumEndpoints 01 01 status change (interrupt) endpoint 5 bInterfaceClass 09 09 HUB_CLASSCODE 6 bInterfaceSubClass 00 00 HubSubClassCode 7 bInterfaceProtocol 00 00 - 8 bInterface 00 00 no interface string descriptor Table 20. Value (hex) Full-speed Comments High-speed Endpoint descriptor Offset (bytes) Field name 0 bLength 07 07 descriptor length = 7 B 1 bDescriptorType 05 05 type = ENDPOINT 2 bEndpointAddress 81 81 endpoint 1 at address number 1 3 bmAttributes 03 03 interrupt endpoint 4 wMaxPacketSize packet size = 1 B Full-speed 5 6 bInterval Table 21. Value (hex) Comments High-speed 01 01 00 00 FF 0C polling interval Hub descriptor Offset (bytes) Field name 0 Value (hex) Comments Full-speed High-speed bDescLength 09 09 descriptor length = 9 B 1 bDescriptorType 29 29 type = HUB 2 bNbrPorts 07 07 06 06 number of enabled downstream facing ports; selectable by the DP/DM strapping 05 05 04 04 03 03 02 02 A9 A9 00 00 32 32 ganged or individual mode = 100 ms 00 00 no power switching mode = 0 ms 3 wHubCharacteristics 4 bPwrOn2PwrGood[1] 5 see Table 22 6 bHubContrCurrent 64 64 - 7 DeviceRemovable 00 00 seven downstream facing ports, no embedded port 8 PortPwrCtrlMask FF FF - [1] Value in units of 2 ms. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 26 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 22. wHubCharacteristics bit description Bit Function Value Description D0, D1 logical power switching mode 00 ganged 01 individual and multiple ganged 10 none 11 - 0 non-compound 1 compound 00 global 01 individual and multiple ganged 10 none D2 compound hub selection D3, D4 overcurrent protection mode 11 - D5 - - - D6 - - - D7 port indicator 0 global feature 1 - 11. Hub requests The hub must react to a variety of requests initiated by the host. Some requests are standard and are implemented by any USB device whereas others are hub-class specific. 11.1 Standard USB requests Table 23 shows supported standard USB requests. Table 23. Standard USB requests Request bmRequestType byte 0 (bits 7 to 0) bRequest wValue byte 1 bytes 2, 3 (hex) (hex) wIndex bytes 4, 5 (hex) wLength bytes 6, 7 (hex) Data response 0000 0000 05 device address[1] 00, 00 00, 00 none Get Configuration 1000 0000 08 00, 00 00, 00 01, 00 configuration value Set Configuration (0) 0000 0000 09 00, 00 00, 00 00, 00 none Set Configuration (1) 0000 0000 09 01, 00 00, 00 00, 00 none Get Configuration Descriptor 1000 0000 06 00, 02 00, 00 length[2] configuration interface and endpoint descriptors Get Device Descriptor 1000 0000 06 00, 01 00, 00 length[2] device descriptor language ID descriptor Address Set Address Configuration Descriptors Get String Descriptor (0) 1000 0000 06 03, 00 00, 00 length[2] Get String Descriptor (1) 1000 0000 06 03, 01 00, 00 length[2] manufacturer string 00, 00 length[2] product string 00, 00 length[2] serial number string Get String Descriptor (2) 1000 0000 Get String Descriptor (3) 1000 0000 06 06 03, 02 03, 03 ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 27 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 23. Standard USB requests …continued Request bmRequestType byte 0 (bits 7 to 0) bRequest wValue byte 1 bytes 2, 3 (hex) (hex) wIndex bytes 4, 5 (hex) wLength bytes 6, 7 (hex) Data response Clear Device Feature (Remote_ Wakeup) 0000 0000 01 01, 00 00, 00 00, 00 none Clear Endpoint (1) Feature (Halt/Stall) 0000 0010 01 00, 00 81, 00 00, 00 none Set Device Feature (Remote_ Wakeup) 0000 0000 03 01, 00 00, 00 00, 00 none Set Endpoint (1) Feature (Halt/Stall) 0000 0010 03 00, 00 81, 00 00, 00 none Get Device Status 1000 0000 00 00, 00 00, 00 02, 00 device status Get Interface Status 1000 0001 00 00, 00 00, 00 02, 00 zero 02, 00 endpoint 0 status 02, 00 endpoint 1 status Feature Status Get Endpoint (0) Status 1000 0010 00 00, 00 00/80, Get Endpoint (1) Status 1000 0010 00 00, 00 81, 00 00[3] [1] Device address: 0 to 127. [2] Returned value in bytes. [3] MSB specifies endpoint direction: 0 = OUT, 1 = IN. The ISP1521 accepts either value. 11.2 Hub class requests Table 24 shows hub class requests. Table 24. Hub class requests Request bmRequestType byte 0 (bits 7 to 0) bRequest byte 1 (hex) wValue bytes 2, 3 (hex) 1010 0000 06 Clear Hub Feature (C_LOCAL_POWER) 0010 0000 Clear Port Feature 0010 0011 wIndex bytes 4, 5 (hex) wLength bytes 6, 7 (hex) Data descriptor type 00, 00 and index length[1] descriptor 01 00, 00 00, 00 00, 00 none 01 feature[2], 00 port[3], 00 00, 00 none 0010 0011 03 feature[2], port[3], 00, 00 none Get Hub Status 1010 0000 00 00, 00 00, 00 04, 00 hub status and change status Get Port Status 1010 0011 00 00, 00 port[3], 00 04, 00 port status and change status ClearTTBuffer 0010 0011 08 Dev_Addr, EP_nr 01, 00 00, 00 none ResetTT 0010 0000 09 00, 00 01, 00 00, 00 none 01, 00 -[4] TT state Descriptor Get Hub Descriptor Feature Set Port Feature 00 00 Status TT GetTTState 1010 0011 10 TT-flags ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 28 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 24. Hub class requests …continued Request bmRequestType byte 0 (bits 7 to 0) bRequest byte 1 (hex) wValue bytes 2, 3 (hex) wIndex bytes 4, 5 (hex) wLength bytes 6, 7 (hex) Data StopTT 0010 0011 11 00, 00 01, 00 00, 00 none 0010 0011 03 15, 00 port[3], 01 00, 00 none 15, 00 port[3], 02 00, 00 none 15, 00 port[3], 03 00, 00 none Test modes Test_J Test_K 0010 0011 Test_SE0_NAK 0010 0011 03 03 Test_Packet 0010 0011 03 15, 00 port[3], 04 00, 00 none Test_Force_Enable 0010 0011 03 15, 00 port[3], 05 00, 00 none [1] Returned value in bytes. [2] Feature selector value; see Table 25. [3] Downstream port identifier: 1 to N where N is the number of enabled ports (2 to 7). [4] Returns vendor-specific data. Table 25. Hub class feature selector Feature selector name Recipient Value C_HUB_LOCAL_POWER hub 00 C_HUB_OVER_CURRENT hub 01 PORT_CONNECTION port 00 PORT_ENABLE port 01 PORT_SUSPEND port 02 PORT_OVER_CURRENT port 03 PORT_RESET port 04 PORT_POWER port 08 PORT_LOW_SPEED port 09 C_PORT_CONNECTION port 16 C_PORT_ENABLE port 17 C_PORT_SUSPEND port 18 C_PORT_OVER_CURRENT port 19 C_PORT_RESET port 20 PORT_TEST port 21 PORT_INDICATOR port 22 11.3 Detailed responses to hub requests 11.3.1 Get configuration This request returns the configuration value of the device. This request returns 1 B of data; see Table 26. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 29 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 26. Get hub configuration response Bit Function Value Description 0 configuration value 0 device is not configured 1 device is configured 1 to 7 reserved 0 - 11.3.2 Get device status This request returns 2 B of data; see Table 27. Table 27. Get device status response Bit Function Value Description 0 self-powered 1 self-powered 1 remote wake-up 2 to 15 reserved 0 disabled 1 enabled 0 - 11.3.3 Get interface status The request returns 2 B of data; see Table 28. Table 28. Get interface status response Bit Function Value Description 0 to 15 reserved 0 - 11.3.4 Get endpoint status The request returns 2 B of data; see Table 29. Table 29. Get endpoint status response Bit Function Value Description 0 halt 0 endpoint is not halted 1 endpoint is halted 1 to 15 reserved 0 - 11.3.5 Get hub status The request returns 4 B of data; see Table 30. Table 30. Get hub status response Bit Function Value Description 0 local power source 0 local power supply good 1 local power supply lost (inactive) 0 no overcurrent condition currently exists 1 a hub overcurrent condition exists 1 overcurrent indicator 2 to 15 reserved 0 - 16 local power status change 0 no change in the local power status 1 local power status has changed ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 30 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 30. Get hub status response …continued Bit Function Value Description 17 overcurrent indicator change 0 no change in overcurrent 1 overcurrent status has changed 0 - 18 to 31 reserved 11.3.6 Get port status This request returns 4 B of data. The first word contains port status bits (wPortStatus), and the next word contains port status change bits (wPortChange). The contents of wPortStatus is given in Table 31, and the contents of wPortChange is given in Table 32. Table 31. Get port status response (wPortStatus) Bit Function 0 current connect status 1 2 3 4 Value port enabled or disabled suspend overcurrent indicator reset 0 no device is present 1 a device is present on this port 0 port is disabled 1 port is enabled 0 port is not suspended 1 port is suspended 0 no overcurrent condition exists 1 an overcurrent condition exists 0 reset signaling is not asserted 1 reset signaling is asserted 5 to 7 reserved 0 - 8 port power 0 port is in the powered-off state 1 port is not in the powered-off state 9 low-speed device attached 0 full-speed or high-speed device is attached 1 low-speed device is attached 10 11 12 13 to 15 Table 32. high-speed device attached port test mode port indicator control reserved 0 full-speed device is attached 1 high-speed device is attached 0 not in port test mode 1 in port test mode 0 displays default colors 1 displays software controlled color 0 - Get port status change response (wPortChange) Bit Function Value Description 0 connect status change 0 no change in the current connect status 1 change in the current connect status 0 port is enabled 1 port is disabled 1 port enable or disable change ISP1521_4 Product data sheet Description © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 31 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 32. Get port status change response (wPortChange) …continued Bit Function Value Description 2 suspend change 0 no change 1 resume complete 0 no change in the overcurrent indicator 1 change in the overcurrent indicator 0 no change 1 reset complete 0 - 3 overcurrent indicator change 4 reset change 5 to 15 reserved 11.4 Various get descriptors bmRequestType — 1000 0000b bmRequest — GET_DESCRIPTOR = 6 Table 33. Get descriptor request Request name wValue wIndex Data Descriptor index Descriptor type Zero/language ID Get device descriptor 00 01 0 device descriptor Get configuration descriptor 00 02 0 configuration interface and endpoint descriptors Get language ID string descriptor 00 03 0 language ID support string Get manufacturer string descriptor 01 03 n manufacturer string in LANGID n Get product string descriptor 02 03 n product string in LANGID n Get serial number string descriptor 03 03 n serial number string in LANGID n ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 32 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 12. Limiting values Table 34. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter Conditions VCC(3V3) supply voltage (3.3 V) VREF(5V0) input reference voltage 5.0 V VI(5V0) input voltage on 5 V buffers 3.0 V < VCC < 3.6 V VI(3V3) 3.3 V input voltage 3.0 V < VCC < 3.6 V VO(3V3) output voltage on 3.3 V buffers Ilu latch-up current VI < 0 V or VI > VCC Vesd electrostatic discharge voltage on pins DM1 to DM7, DP1 to DP7, OC1_N to OC7_N, and all VREF(5V0) and GND pins; ILI < 1 µA [2][3] on all other pins; ILI < 1 µA [2][3] [1] Max Unit −0.5 +4.6 V −0.5 +6.0 V −0.5 +6.0 V −0.5 +4.6 V −0.5 +4.6 V - 100 mA −4000 +4000 V −2000 +2000 V −40 +125 °C Min Typ Max Unit 3.0 3.3 3.6 V 4.5 5.0 5.5 V V storage temperature Tstg Min [1] Valid only when supply voltage is present. [2] Test method available on request. [3] Equivalent to discharging a 100 pF capacitor through a 1.5 kΩ resistor (Human Body Model). 13. Recommended operating conditions Table 35. Recommended operating ranges Symbol Parameter VCC(3V3) supply voltage (3.3 V) VREF(5V0) input reference voltage 5.0 V Conditions [1] VI(3V3) 3.3 V input voltage 0 - VCC VI(5V0) input voltage on 5 V tolerant pins 0 - VREF(5V0) V Tamb ambient temperature −40 - +70 [1] °C All internal pull-up resistors are connected to this voltage. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 33 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 14. Static characteristics Table 36. Static characteristics: supply pins VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Full-speed IREF(5V0) supply current 5 V ICC(tot) total supply current - 0.5 - mA ICC(tot) = ICC1 + ICC2 + ICC3 + ICC4 [1][2] - 91 - mA suspend mode; internal clock stopped [2][3] - 0.5 - mA no device connected - 183 - mA one active device connected - 231 - mA two active devices connected - 276 - mA three active devices connected - 318 - mA High-speed ICC(tot) total supply current four active devices connected - 362 - mA five active devices connected - 400 - mA six active devices connected - 446 - mA seven active devices connected - 492 - mA Min Typ Max Unit [1] Irrespective of the number of devices connected, the value of ICC is always 91 mA in full-speed. [2] Total supply current for 3.3 V supply voltage. [3] Including Rpu drop current. Table 37. Static characteristics: digital input and outputs VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; unless otherwise specified.[1] Symbol Parameter Conditions Digital input pins VIL LOW-level input voltage - - 0.8 V VIH HIGH-level input voltage 2.0 - - V ILI input leakage current −1 - +1 µA Schmitt-trigger input pins Vth(LH) positive-going threshold voltage 1.4 - 1.9 V Vth(HL) negative-going threshold voltage 0.9 - 1.5 V Vhys hysteresis voltage 0.4 - 0.7 V - 84 - mV Overcurrent detection pins OC1_N to OC7_N ∆Vtrip overcurrent detection trip voltage ∆V = VCC − VOCn_N Digital output pins VOL LOW-level output voltage - - 0.4 V VOH HIGH-level output voltage 2.4 - - V −1 - +1 µA Open-drain output pins off-state output current IOZ [1] All pins are 5 V tolerant. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 34 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 38. Static characteristics: I2C-bus interface block VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; unless otherwise specified. Symbol Parameter Input pin SCL and input/output pin Conditions Min Typ Max Unit SDA[1] VIL LOW-level input voltage - - 0.9 V VIH HIGH-level input voltage 2.1 - - V Vhys hysteresis voltage 0.15 - - V VOL LOW-level output voltage - - 0.4 V tf fall time - 0 250 ns [1] All pins are 5 V tolerant. [2] The bus capacitance (Cb) is specified in pF. To meet the specification for VOL and the maximum rise time (300 ns), use an external pull-up resistor with Rmax = 850 / Cb kΩ and Rmin = (VCC − 0.4) / 3 kΩ. [3] Output fall time VIH to VIL. Cb = 10 pF to 400 pF [2][3] Table 39. Static characteristics: USB interface block (DP0 to DP7 and DM0 to DM7) VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit squelch detected - - 100 mV no squelch detected 150 - - mV −50 - +500 mV Input levels for high-speed VHSSQ VHSCM high-speed squelch detection threshold voltage (differential signal amplitude) high-speed data signaling common-mode voltage range Output levels for high-speed VHSOI high-speed idle level −10 - +10 mV VHSOH high-speed data signaling HIGH-level voltage 360 - 440 mV VHSOL high-speed data signaling LOW-level voltage −10 - +10 mV VCHIRPJ Chirp J level (differential voltage) [1] 700 - 1100 mV Chirp K level (differential voltage) [1] −900 - −500 mV - - 0.8 V 2.0 - - V 2.7 - 3.6 V 0.2 - - V 0.8 - 2.5 V 0 - 0.3 V 2.8 - 3.6 V 1.3 - 2.0 V −1 - +1 µA - - 20 pF VCHIRPK Input levels for full-speed and low-speed VIL LOW-level input voltage VIH HIGH-level input voltage VIHZ HIGH-level input voltage (floating) VDI differential input sensitivity VCM differential common-mode range driven |DP − DM| Output levels for full-speed and low-speed VOL LOW-level output voltage VOH HIGH-level output voltage VCRS output signal crossover voltage [2] Leakage current ILZ off-state leakage current Capacitance Cin input capacitance pin to GND ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 35 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 39. Static characteristics: USB interface block (DP0 to DP7 and DM0 to DM7) …continued VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit 10 - - MΩ 3.0 - 3.6 V Resistance ZINP input impedance Termination VTERM termination voltage for pull-up resistor on pin RPU [3] [1] For minimum value, the HS termination resistor is disabled and the pull-up resistor is connected. Only during reset, when both the hub and the device are capable of high-speed operation. [2] Characterized only, not tested. Limits guaranteed by design. [3] In suspend mode, the minimum voltage is 2.7 V. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 36 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 15. Dynamic characteristics Table 40. Symbol Dynamic characteristics: system clock timing Parameter Conditions Min Typ Max Unit Reset tW(POR) internal power-on reset pulse width 0.2 - 1 µs tW(RESET_N) external RESET_N pulse width 0.2 - - µs - 12 - MHz - 50 - % Min Typ Max Unit - - 15 ms Crystal oscillator clock frequency fclk [1][2] crystal External clock input δ clock duty cycle [1] Recommended accuracy of the clock frequency is 500 ppm for the crystal. [2] Suggested values for external capacitors when using a crystal are 22 pF to 27 pF. Table 41. Dynamic characteristics: overcurrent sense timing VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; unless otherwise specified. Symbol Parameter Conditions Overcurrent sense pins OC1_N to OC7_N overcurrent trip response time from OCn_N LOW to PSWn_N HIGH ttrip see Figure 9 VCC ∆Vtrip overcurrent input 0V ttrip VCC power switch output mbl032 0V Overcurrent input: pins OCn_N; power switch output: pins PSWn_N. Fig 9. Overcurrent trip response timing Table 42. Dynamic characteristics: digital pins VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; unless otherwise specified.[1] Symbol Parameter tt(HL), tt(LH) output transition time [1] Conditions Min Typ Max Unit 4 - 15 ns All pins are 5 V tolerant. ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 37 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 43. Dynamic characteristics: high-speed source electrical characteristics VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; test circuit Figure 21; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Driver characteristics tHSR rise time 10 % to 90 % 500 - - ps tHSF fall time 90 % to 10 % 500 - - ps - Clock timing tHSDRAT high-speed data rate 479.76 480.24 Mbit/s tHSFRAM microframe interval 124.9375 - 125.0625 µs tHSRFI consecutive microframe interval difference 1 four high-speed bit times ns - Table 44. Dynamic characteristics: full-speed source electrical characteristics VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; test circuit Figure 22; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Driver characteristics tFR rise time CL = 50 pF; 10 % to 90 % of |VOH − VOL| 4 - 20 ns tFF fall time CL = 50 pF; 90 % to 10 % of |VOH − VOL| 4 - 20 ns tFRFM differential rise and fall time matching 90 - 111.1 % VCRS output signal crossover voltage 1.3 - 2.0 V Data source [1] [1][2] timing[2] tDJ1 source jitter total (including frequency tolerance) to next transition see Figure 10 [1] −3.5 - +3.5 ns tDJ2 source jitter total (including frequency tolerance) for paired transitions see Figure 10 [1] −4 - +4 ns tFEOPT source SE0 interval of EOP see Figure 11 160 - 175 ns tFDEOP source jitter for differential transition see Figure 11 to SE0 transition −2 - +5 ns Receiver timing[2] tJR1 receiver jitter to next transition see Figure 12 −18.5 - +18.5 ns tJR2 receiver jitter for paired transitions see Figure 12 −9 - +9 ns tFEOPR receiver SE0 interval of EOP accepted as EOP; see Figure 11 82 - - ns tFST width of SE0 interval during differential transition rejected as EOP; see Figure 13 - - 14 ns ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 38 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 44. Dynamic characteristics: full-speed source electrical characteristics …continued VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; test circuit Figure 22; unless otherwise specified. Symbol Parameter Conditions Min Typ Max Unit Hub timing (downstream ports configured as full-speed)[2] tFHDD hub differential data delay (without cable) see Figure 14; CL = 0 pF - - 44 ns tFSOP data bit width distortion after SOP see Figure 14 −5 - +5 ns tFEOPD hub EOP delay relative to tHDD see Figure 15 0 - 15 ns tFHESK hub EOP output width skew see Figure 15 −15 - +15 ns Min Typ Max Unit [1] Excluding the first transition from idle state. [2] Characterized only, not tested. Limits guaranteed by design. Table 45. Dynamic characteristics: low-speed source electrical characteristics VCC = 3.0 V to 3.6 V; Tamb = −40 °C to +70 °C; test circuit Figure 22; unless otherwise specified. Symbol Parameter Conditions Driver characteristics tLR rise time 75 - 300 ns tLF fall time 75 - 300 ns 80 - 125 % 1.3 - 2.0 V tLRFM VCRS [1] rise and fall time matching [1][2] output signal crossover voltage Hub timing (downstream ports configured as full-speed) tLHDD tLSOP tLEOPD tLHESK hub differential data delay data bit width distortion after SOP hub EOP delay relative to tHDD hub EOP output width skew see Figure 14 - - 300 ns see Figure 14 [2] −60 - +60 ns see Figure 15 [2] 0 - 200 ns see Figure 15 [2] −300 - +300 ns [1] Excluding the first transition from idle state. [2] Characterized only, not tested. Limits guaranteed by design. TPERIOD +3.3 V crossover point crossover point crossover point differential data lines 0V mgr870 consecutive transitions N × TPERIOD + t DJ1 paired transitions N × TPERIOD + t DJ2 TPERIOD is the bit duration corresponding with the USB data rate. Fig 10. Source differential data jitter ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 39 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller TPERIOD +3.3 V crossover point extended crossover point differential data lines 0V differential data to SE0/EOP skew N × TPERIOD + t DEOP source EOP width: t EOPT receiver EOP width: t EOPR mgr776 TPERIOD is the bit duration corresponding with the USB data rate. Full-speed timing symbols have a subscript prefix ‘F’, low-speed timing a prefix ‘L’. Fig 11. Source differential data-to-EOP transition skew and EOP width TPERIOD +3.3 V differential data lines 0V t JR t JR1 t JR2 mgr871 consecutive transitions N × TPERIOD + t JR1 paired transitions N × TPERIOD + t JR2 TPERIOD is the bit duration corresponding with the USB data rate. tJR is the jitter reference point. Fig 12. Receiver differential data jitter t FST +3.3 V differential data lines 0V VIH(min) mgr872 Fig 13. Receiver SE0 width tolerance ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 40 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller +3.3 V upstream differential data lines crossover point crossover point downstream differential data 0V hub delay downstream t HDD hub delay upstream t HDD +3.3 V crossover point downstream differential data lines crossover point upstream differential data 0V mgr777 (A) downstream hub delay (B) upstream hub delay SOP distortion: t SOP = t HDD (next J) − t HDD(SOP) Full-speed timing symbols have a subscript prefix ‘F’, low-speed timing a prefix ‘L’. Fig 14. Hub differential data delay and SOP distortion +3.3 V crossover point extended upstream differential data lines crossover point extended downstream port 0V t EOP− t EOP+ t EOP− t EOP+ +3.3 V crossover point extended downstream differential data lines crossover point extended upstream end of cable 0V mgr778 (A) downstream EOP delay (B) upstream EOP delay EOP delay: t EOP = max (t EOP−, tEOP+) EOP delay relative to t HDD: t EOPD = t EOP − t HDD EOP skew: t HESK = t EOP+ − t EOP− Full-speed timing symbols have a subscript prefix ‘F’, low-speed timing a prefix ‘L’. Fig 15. Hub EOP delay and EOP skew ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 41 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller Table 46. Dynamic characteristics: I2C-bus (pins SDA and SCL) VCC and Tamb within recommended operating range; VDD = 5 V; VSS = VGND ; VIL and VIH between VSS and VDD. Symbol Parameter Conditions Min Typ Max Unit 0 93.75 100 kHz 4.7 - - µs Clock frequency SCL clock frequency fSCL [1] fXTAL = 12 MHz General timing t(SCL)L LOW period of the SCL clock t(SCL)H HIGH period of the SCL clock tr rise time SDA and SCL signals tf fall time SDA and SCL signals Cb capacitive load for each bus line [2] 4.0 - - µs - - 1000 ns - - 300 ns - - 400 pF 4.7 - - µs SDA timing tBUF bus free time between a STOP and START condition tSU;STA setup time for the START condition [3] 4.7 - - µs tHD;STA hold time for the START condition [4] 4.0 - - µs tSU;DAT data setup time 250 - - ns tHD;DAT data hold time 0 - - µs tSU;STO STOP condition setup time 4.0 - - µs Additional I2C-bus tVD;DAT data valid time - - 0.4 µs timing [5] [1] fSCL = 1⁄64 × fXTAL. [2] Rise time is determined by Cb and pull-up resistor value Rp (typical 4.7 kΩ). [3] Setup time for (repeated) START condition. [4] Hold time for (repeated) START condition. [5] SCL LOW to data-out valid time. SDA t BUF tr tf SCL P S t HD;STA Sr t SU;DAT t HD;DAT t (SCL)H t( SCL)L t SU;STA P t SU;STO 004aaa814 Fig 16. I2C-bus timing ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 42 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 16. Application information 16.1 Descriptor configuration selection upstream facing port GoodLink I2C-bus ROM ISP1521 external microcontroller acting as I2C-bus master green and amber LEDs, port 1 . . green and amber LEDs, port 7(1) EEPROM USB function 004aaa302 7 USB downstream facing ports The I2C-bus cannot be shared between the EEPROM and the external microcontroller; see Table 11. (1) The function on port 7, which is a nonremovable port, is optional. Fig 17. Descriptors configuration selection application diagram 16.2 Overcurrent detection limit adjustment For an overcurrent limit of 500 mA per port, a PMOS with RDSon of approximately 100 mΩ is required. If a PMOS with a lower RDSon is used, analog overcurrent detection can be adjusted by using a series resistor; see Figure 18. ∆VPMOS = ∆Vtrip = ∆Vtrip(intrinsic) − (IOC(nom) × Radj(oc)), where: ∆VPMOS = voltage drop on PMOS IOC(nom) = 0.6 µA. 5V IOC Radj(oc)(1) VREF(5V0) PSWn_N OCn_N ISP1521 004aaa260 (1) Radj(oc) is optional. Fig 18. Adjusting analog overcurrent detection limit (optional) ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 43 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 16.3 Self-powered hub configurations + 5V±3% POWER SUPPLY − +4.85 V (min) 3.3 V LDO VOLTAGE REGULATOR downstream port connector T1 VCC VREF(5V0) GND 120 µF 0.1 µF PSW1_N ferrite bead 47 kΩ VBUS +4.75 V (min) D+ D− 1 GND SHIELD OC1_N PSW2_N TEST_LOW OC2_N PSW3_N OC3_N TEST_HIGH port 2 to port 6 PSW4_N ISP1521 3.3 V or ADOC 5.0 V OC4_N PSW5_N OC5_N PSW6_N OC6_N T7 0.1 µF PSW7_N 47 kΩ ferrite bead 120 µF VBUS +4.75 V (min) D+ D− 7 GND SHIELD OC7_N 004aaa304 Fig 19. Self-powered hub; individual port power switching; individual overcurrent detection ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 44 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 5.1 V ± 3 % + POWER SUPPLY − (kick-up) +4.95 V (min) low-ohmic sense resistor for overcurrent detection 3.3 V LDO VOLTAGE REGULATOR downstream port connector VCC T1 OC1_N VREF(5V0) 0.1 µF GND PSW1_N ferrite bead 120 µF 47 kΩ VBUS +4.75 V (min) D+ D− 1 GND SHIELD PSW2_N PSW3_N TEST_LOW PSW4_N PSW5_N ISP1521 port 2 to port 6 PSW6_N PSW7_N TEST_HIGH OC2_N +5 V OC3_N ferrite bead OC4_N 3.3 V or 5.0 V ADOC OC5_N OC6_N OC7_N 120 µF VBUS +4.75 V (min) D+ D− 7 GND SHIELD 004aaa306 Fig 20. Self-powered hub; ganged port power switching; global overcurrent detection ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 45 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 17. Test information VCC DPn 15.8 Ω DMn 15.8 Ω 50 Ω coax D+ (1) DUT 50 Ω coax D− GND mdb273 143 Ω 143 Ω (1) Transmitter: connected to 50 Ω inputs of a high-speed differential oscilloscope. Receiver: connected to 50 Ω outputs of a high-speed differential data generator. Fig 21. High-speed transmitter and receiver test circuit 3.3 V 1.5 kΩ ± 5% RPU fullspeed (1) DPn test point DUT CL(1) 15 kΩ DMn test point CL(1) 15 kΩ mdb274 (1) CL = 50 pF for full-speed. Fig 22. Full-speed test circuit ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 46 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 18. Package outline LQFP80: plastic low profile quad flat package; 80 leads; body 12 x 12 x 1.4 mm SOT315-1 c y X A 60 41 40 Z E 61 e E HE A A2 (A 3) A1 w M θ bp Lp L pin 1 index 80 21 1 detail X 20 ZD e v M A w M bp D B HD v M B 0 5 10 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e mm 1.6 0.16 0.04 1.5 1.3 0.25 0.27 0.13 0.18 0.12 12.1 11.9 12.1 11.9 0.5 HD HE 14.15 14.15 13.85 13.85 L Lp v w y 1 0.75 0.30 0.2 0.15 0.1 Z D (1) Z E (1) θ 1.45 1.05 7o o 0 1.45 1.05 Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. REFERENCES OUTLINE VERSION IEC JEDEC SOT315-1 136E15 MS-026 JEITA EUROPEAN PROJECTION ISSUE DATE 00-01-19 03-02-25 Fig 23. Package outline SOT315-1 (LQFP80) ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 47 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 19. Soldering 19.1 Introduction to soldering surface mount packages 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 90011). There is no soldering method that is ideal for all surface mount IC packages. Wave soldering can still be used for certain surface mount ICs, but it is not suitable for fine pitch SMDs. In these situations reflow soldering is recommended. 19.2 Reflow soldering Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. Driven by legislation and environmental forces the worldwide use of lead-free solder pastes is increasing. Several methods exist for reflowing; for example, convection or convection/infrared heating in a conveyor type oven. Throughput times (preheating, soldering and cooling) vary between 100 seconds and 200 seconds depending on heating method. Typical reflow peak temperatures range from 215 °C to 270 °C depending on solder paste material. The top-surface temperature of the packages should preferably be kept: • below 225 °C (SnPb process) or below 245 °C (Pb-free process) – for all BGA, HTSSON..T and SSOP..T packages – for packages with a thickness ≥ 2.5 mm – for packages with a thickness < 2.5 mm and a volume ≥ 350 mm3 so called thick/large packages. • below 240 °C (SnPb process) or below 260 °C (Pb-free process) for packages with a thickness < 2.5 mm and a volume < 350 mm3 so called small/thin packages. Moisture sensitivity precautions, as indicated on packing, must be respected at all times. 19.3 Wave soldering Conventional single wave soldering is not recommended for surface mount devices (SMDs) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. To overcome these problems the double-wave soldering method was specifically developed. If wave soldering is used the following conditions must be observed for optimal results: • Use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave. • For packages with leads on two sides and a pitch (e): – larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 48 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller – smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves at the downstream end. • For packages with leads on four sides, the footprint must be placed at a 45° angle to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners. During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Typical dwell time of the leads in the wave ranges from 3 seconds to 4 seconds at 250 °C or 265 °C, depending on solder material applied, SnPb or Pb-free respectively. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. 19.4 Manual soldering Fix the component by first soldering two diagonally-opposite end leads. Use a low voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C. When using a dedicated tool, all other leads can be soldered in one operation within 2 seconds to 5 seconds between 270 °C and 320 °C. 19.5 Package related soldering information Table 47. Suitability of surface mount IC packages for wave and reflow soldering methods Package[1] Soldering method Wave Reflow[2] BGA, HTSSON..T[3], LBGA, LFBGA, SQFP, SSOP..T[3], TFBGA, VFBGA, XSON not suitable suitable DHVQFN, HBCC, HBGA, HLQFP, HSO, HSOP, HSQFP, HSSON, HTQFP, HTSSOP, HVQFN, HVSON, SMS not suitable[4] suitable PLCC[5], SO, SOJ suitable suitable not recommended[5][6] suitable SSOP, TSSOP, VSO, VSSOP not recommended[7] suitable CWQCCN..L[8], PMFP[9], WQCCN..L[8] not suitable LQFP, QFP, TQFP [1] For more detailed information on the BGA packages refer to the (LF)BGA Application Note (AN01026); order a copy from your Philips Semiconductors sales office. [2] All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the Drypack information in the Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods. [3] These transparent plastic packages are extremely sensitive to reflow soldering conditions and must on no account be processed through more than one soldering cycle or subjected to infrared reflow soldering with peak temperature exceeding 217 °C ± 10 °C measured in the atmosphere of the reflow oven. The package body peak temperature must be kept as low as possible. ISP1521_4 Product data sheet not suitable © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 49 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller [4] These packages are not suitable for wave soldering. On versions with the heatsink on the bottom side, the solder cannot penetrate between the printed-circuit board and the heatsink. On versions with the heatsink on the top side, the solder might be deposited on the heatsink surface. [5] If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners. [6] Wave soldering is suitable for LQFP, QFP and TQFP packages with a pitch (e) larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. [7] Wave soldering is suitable for SSOP, TSSOP, VSO and VSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm. [8] Image sensor packages in principle should not be soldered. They are mounted in sockets or delivered pre-mounted on flex foil. However, the image sensor package can be mounted by the client on a flex foil by using a hot bar soldering process. The appropriate soldering profile can be provided on request. [9] Hot bar soldering or manual soldering is suitable for PMFP packages. 20. Abbreviations Table 48. Abbreviations Acronym Description ACPI Advanced Configuration and Power Interface CRC Cyclical Redundancy Check EEPROM Electronically Erasable Programmable Read-Only Memory EMI ElectroMagnetic Interference EOP End-of-Packet ESD ElectroStatic Discharge FET Field-Effect Transistor HS High-Speed LSB Least Significant Bit MSB Most Significant Bit MOSFET Metal Oxide Silicon Field Effect Transistor NAK Not AcKnowledge PCB Printed-Circuit Board PID Packet IDentifier PLL Phase-Locked Loop SIE Serial Interface Engine SOP Start-of-Packet TT Transaction Translator TTL Transistor-Transistor Logic USB Universal Serial Bus 21. References [1] Universal Serial Bus Specification Rev. 2.0 [2] The I2C-bus specification [3] ISP1521 Hub Demo Board User’s Guide ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 50 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 22. Revision history Table 49. Revision history Document ID Release date Data sheet status Change notice Supersedes ISP1521_4 20060330 Product data sheet - ISP1521-03 Modifications: • The format of this data sheet has been redesigned to comply with the new presentation and information standard of Philips Semiconductors. • The symbols and parameters have been changed, wherever applicable, to comply with the new presentation and information standard of Philips Semiconductors. • Table 2 “Pin description”: updated description for the SUSPEND and RESET_N pins, also changed type from O to I/O for SUSPEND. • • Table 10 “I2C-bus slave address”: updated the last column. Table 44 “Dynamic characteristics: full-speed source electrical characteristics”: data for driver output impedance deleted. ISP1521-03 (9397 750 13702) 20041124 Product data - ISP1521-02 ISP1521-02 (9397 750 11691) 20040212 Product data - ISP1521-01 ISP1521-01 (9397 750 10691) 20030625 Preliminary data - - ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 51 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 23. Legal information 23.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification. [1] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘short data sheet’ is explained in section “Definitions”. [3] The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status information is available on the Internet at URL http://www.semiconductors.philips.com. 23.2 Definitions Draft — The document is a draft version only. The content is still under internal review and subject to formal approval, which may result in modifications or additions. Philips Semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. Short data sheet — A short data sheet is an extract from a full data sheet with the same product type number(s) and title. A short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. For detailed and full information see the relevant full data sheet, which is available on request via the local Philips Semiconductors sales office. In case of any inconsistency or conflict with the short data sheet, the full data sheet shall prevail. 23.3 Disclaimers General — Information in this document is believed to be accurate and reliable. However, Philips Semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. Right to make changes — Philips Semiconductors reserves the right to make changes to information published in this document, including without limitation specifications and product descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Suitability for use — Philips Semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of a Philips Semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Philips Semiconductors accepts no liability for inclusion and/or use of Philips Semiconductors products in such equipment or applications and therefore such inclusion and/or use is for the customer’s own risk. Applications — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Limiting values — Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) may cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the Characteristics sections of this document is not implied. Exposure to limiting values for extended periods may affect device reliability. Terms and conditions of sale — Philips Semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www.semiconductors.philips.com/profile/terms, including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by Philips Semiconductors. In case of any inconsistency or conflict between information in this document and such terms and conditions, the latter will prevail. No offer to sell or license — Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. 23.4 Trademarks Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners. I2C-bus — logo is a trademark of Koninklijke Philips Electronics N.V. GoodLink — is a trademark of Koninklijke Philips Electronics N.V. 24. Contact information For additional information, please visit: http://www.semiconductors.philips.com For sales office addresses, send an email to: [email protected] ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 52 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 25. Tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Table 16. Table 17. Table 18. Table 19. Table 20. Table 21. Table 22. Table 23. Table 24. Table 25. Table 26. Table 27. Table 28. Table 29. Table 30. Table 31. Table 32. Table 33. Table 34. Table 35. Table 36. Table 37. Table 38. Table 39. Table 40. Ordering information . . . . . . . . . . . . . . . . . . . . .2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . .4 Configuration parameters . . . . . . . . . . . . . . . .12 Downstream facing port number pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . .13 Power switching mode: pin configuration . . . . .14 Overcurrent protection mode pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . .15 Overcurrent detection mode selection pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . .15 Nonremovable port pin configuration . . . . . . . .15 Port indicator support: pin configuration . . . . .16 I2C-bus slave address . . . . . . . . . . . . . . . . . . .16 Configuration method . . . . . . . . . . . . . . . . . . .17 ROM or EEPROM detailed map . . . . . . . . . . .18 Hub endpoints . . . . . . . . . . . . . . . . . . . . . . . . .23 Status Change byte: bit allocation . . . . . . . . . .24 Device descriptor . . . . . . . . . . . . . . . . . . . . . . .24 Device_qualifier descriptor . . . . . . . . . . . . . . .25 Other_speed_configuration descriptor . . . . . . .25 Configuration descriptor . . . . . . . . . . . . . . . . . .25 Interface descriptor . . . . . . . . . . . . . . . . . . . . .26 Endpoint descriptor . . . . . . . . . . . . . . . . . . . . .26 Hub descriptor . . . . . . . . . . . . . . . . . . . . . . . . .26 wHubCharacteristics bit description . . . . . . . .27 Standard USB requests . . . . . . . . . . . . . . . . . .27 Hub class requests . . . . . . . . . . . . . . . . . . . . .28 Hub class feature selector . . . . . . . . . . . . . . . .29 Get hub configuration response . . . . . . . . . . . .30 Get device status response . . . . . . . . . . . . . . .30 Get interface status response . . . . . . . . . . . . .30 Get endpoint status response . . . . . . . . . . . . .30 Get hub status response . . . . . . . . . . . . . . . . .30 Get port status response (wPortStatus) . . . . .31 Get port status change response (wPortChange) . . . . . . . . . . . . . . . . . . . . . . . . .31 Get descriptor request . . . . . . . . . . . . . . . . . . .32 Limiting values . . . . . . . . . . . . . . . . . . . . . . . . .33 Recommended operating ranges . . . . . . . . . .33 Static characteristics: supply pins . . . . . . . . . .34 Static characteristics: digital input and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Static characteristics: I2C-bus interface block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 Static characteristics: USB interface block (DP0 to DP7 and DM0 to DM7) . . . . . . . . . . . .35 Dynamic characteristics: system clock timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 Table 41. Dynamic characteristics: overcurrent sense timing . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Table 42. Dynamic characteristics: digital pins . . . . . . . . 37 Table 43. Dynamic characteristics: high-speed source electrical characteristics . . . . . . . . . . . . . . . . . 38 Table 44. Dynamic characteristics: full-speed source electrical characteristics . . . . . . . . . . . . . . . . . 38 Table 45. Dynamic characteristics: low-speed source electrical characteristics . . . . . . . . . . . . . . . . . 39 Table 46. Dynamic characteristics: I2C-bus (pins SDA and SCL) . . . . . . . . . . . . . . . . . . . . 42 Table 47. Suitability of surface mount IC packages for wave and reflow soldering methods . . . . . . . . 49 Table 48. Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Table 49. Revision history . . . . . . . . . . . . . . . . . . . . . . . . 51 continued >> ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 53 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 26. Figures Fig 1. Fig 2. Fig 3. Fig 4. Fig 5. Fig 6. Fig 7. Fig 8. Fig 9. Fig 10. Fig 11. Fig 12. Fig 13. Fig 14. Fig 15. Fig 16. Fig 17. Fig 18. Fig 19. Fig 20. Fig 21. Fig 22. Fig 23. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . .4 Power-on reset timing . . . . . . . . . . . . . . . . . . . . .11 External clock with respect to power-on reset . . .11 Typical voltage drop components in self-powered mode using individual overcurrent detection . . . . . . . . . . . . . . . . . . . . . .14 Typical voltage drop components in self-powered mode using global overcurrent detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Configurable hub descriptors . . . . . . . . . . . . . . . .17 ROM or EEPROM map . . . . . . . . . . . . . . . . . . . .18 Overcurrent trip response timing . . . . . . . . . . . . .37 Source differential data jitter . . . . . . . . . . . . . . . .39 Source differential data-to-EOP transition skew and EOP width . . . . . . . . . . . . . . . . . . . . . .40 Receiver differential data jitter . . . . . . . . . . . . . . .40 Receiver SE0 width tolerance . . . . . . . . . . . . . . .40 Hub differential data delay and SOP distortion . .41 Hub EOP delay and EOP skew . . . . . . . . . . . . . .41 I2C-bus timing . . . . . . . . . . . . . . . . . . . . . . . . . . .42 Descriptors configuration selection application diagram . . . . . . . . . . . . . . . . . . . . . . .43 Adjusting analog overcurrent detection limit (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 Self-powered hub; individual port power switching; individual overcurrent detection. . . . . .44 Self-powered hub; ganged port power switching; global overcurrent detection . . . . . . . .45 High-speed transmitter and receiver test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 Full-speed test circuit . . . . . . . . . . . . . . . . . . . . . .46 Package outline SOT315-1 (LQFP80) . . . . . . . . .47 continued >> ISP1521_4 Product data sheet © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev. 04 — 30 March 2006 54 of 55 ISP1521 Philips Semiconductors Hi-Speed USB hub controller 27. Contents 1 2 3 4 5 6 6.1 6.2 7 7.1 7.2 7.2.1 7.2.2 7.2.3 7.2.4 7.2.5 7.2.6 7.2.7 7.3 7.4 7.5 7.6 7.7 8 8.1 8.1.1 8.1.2 8.1.2.1 8.1.3 8.1.4 8.1.5 8.2 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Ordering information . . . . . . . . . . . . . . . . . . . . . 2 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Pinning information . . . . . . . . . . . . . . . . . . . . . . 4 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 Functional description . . . . . . . . . . . . . . . . . . . 9 Analog transceivers . . . . . . . . . . . . . . . . . . . . . 9 Hub controller core . . . . . . . . . . . . . . . . . . . . . . 9 Philips serial interface engine . . . . . . . . . . . . . . 9 Routing logic . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Transaction translator . . . . . . . . . . . . . . . . . . . . 9 Mini-Host Controller . . . . . . . . . . . . . . . . . . . . . 9 Hub repeater. . . . . . . . . . . . . . . . . . . . . . . . . . 10 Hub and port controllers . . . . . . . . . . . . . . . . . 10 Bit clock recovery . . . . . . . . . . . . . . . . . . . . . . 10 Phase-locked loop clock multiplier . . . . . . . . . 10 I2C-bus controller . . . . . . . . . . . . . . . . . . . . . . 10 Overcurrent detection circuit. . . . . . . . . . . . . . 10 GoodLink . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Power-on reset . . . . . . . . . . . . . . . . . . . . . . . . 10 Configuration selections. . . . . . . . . . . . . . . . . 12 Configuration through I/O pins . . . . . . . . . . . . 13 Number of downstream facing ports. . . . . . . . 13 Power switching . . . . . . . . . . . . . . . . . . . . . . . 13 Voltage drop requirements . . . . . . . . . . . . . . . 13 Overcurrent protection mode . . . . . . . . . . . . . 14 Nonremovable port . . . . . . . . . . . . . . . . . . . . . 15 Port indicator support . . . . . . . . . . . . . . . . . . . 15 Device descriptors and string descriptors settings using I2C-bus. . . . . . . . . . . . . . . . . . . 16 8.2.1 Background information on I2C-bus . . . . . . . . 16 8.2.1.1 Different conditions on I2C-bus . . . . . . . . . . . . 16 8.2.1.2 Data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8.2.1.3 I2C-bus address . . . . . . . . . . . . . . . . . . . . . . . 16 8.2.2 Architecture of configurable hub descriptors . 17 8.2.3 ROM or EEPROM map. . . . . . . . . . . . . . . . . . 18 8.2.4 ROM or EEPROM detailed map . . . . . . . . . . . 18 9 Hub controller description . . . . . . . . . . . . . . . 23 9.1 Endpoint 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 9.2 Endpoint 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 10 Descriptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 11 Hub requests . . . . . . . . . . . . . . . . . . . . . . . . . . 27 11.1 Standard USB requests . . . . . . . . . . . . . . . . . 27 11.2 11.3 11.3.1 11.3.2 11.3.3 11.3.4 11.3.5 11.3.6 11.4 12 13 14 15 16 16.1 16.2 16.3 17 18 19 19.1 19.2 19.3 19.4 19.5 20 21 22 23 23.1 23.2 23.3 23.4 24 25 26 27 Hub class requests. . . . . . . . . . . . . . . . . . . . . Detailed responses to hub requests. . . . . . . . Get configuration . . . . . . . . . . . . . . . . . . . . . . Get device status . . . . . . . . . . . . . . . . . . . . . . Get interface status . . . . . . . . . . . . . . . . . . . . Get endpoint status . . . . . . . . . . . . . . . . . . . . Get hub status . . . . . . . . . . . . . . . . . . . . . . . . Get port status . . . . . . . . . . . . . . . . . . . . . . . . Various get descriptors. . . . . . . . . . . . . . . . . . Limiting values . . . . . . . . . . . . . . . . . . . . . . . . Recommended operating conditions . . . . . . Static characteristics . . . . . . . . . . . . . . . . . . . Dynamic characteristics . . . . . . . . . . . . . . . . . Application information . . . . . . . . . . . . . . . . . Descriptor configuration selection . . . . . . . . . Overcurrent detection limit adjustment. . . . . . Self-powered hub configurations . . . . . . . . . . Test information. . . . . . . . . . . . . . . . . . . . . . . . Package outline . . . . . . . . . . . . . . . . . . . . . . . . Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Introduction to soldering surface mount packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reflow soldering. . . . . . . . . . . . . . . . . . . . . . . Wave soldering. . . . . . . . . . . . . . . . . . . . . . . . Manual soldering . . . . . . . . . . . . . . . . . . . . . . Package related soldering information . . . . . . Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . Revision history . . . . . . . . . . . . . . . . . . . . . . . Legal information . . . . . . . . . . . . . . . . . . . . . . Data sheet status . . . . . . . . . . . . . . . . . . . . . . Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . Contact information . . . . . . . . . . . . . . . . . . . . Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 29 29 30 30 30 30 31 32 33 33 34 37 43 43 43 44 46 47 48 48 48 48 49 49 50 50 51 52 52 52 52 52 52 53 54 55 Please be aware that important notices concerning this document and the product(s) described herein, have been included in section ‘Legal information’. © Koninklijke Philips Electronics N.V. 2006. All rights reserved. For more information, please visit: http://www.semiconductors.philips.com. For sales office addresses, email to: [email protected]. Date of release: 30 March 2006 Document identifier: ISP1521_4