PRELIMINARY
CY7C65632
HX2VL™ Very Low Power USB 2.0 Hub Controller
Features
■ ■ ❐ ❐
High performance, low-power USB 2.0 Hub, optimized for low cost designs with minimum Bill-of-material USB 2.0 hub controller ❐ Compliant with USB 2.0 specification ❐ Up to four downstream ports support ❐ Downstream ports are backward compatible with FS,LS ❐ Single transaction translator (TT) for low cost Very low power consumption ❐ Supports bus-powered and self-powered modes ❐ Auto switching between bus-powered and self-powered ❐ Single MCU with 2 K ROM and 64 byte RAM ❐ Lowest power consumption Highly integrated solution for reduced BOM cost ❐ Internal regulator – single power supply 5 V required ❐ Provision of connecting 3.3 V with external regulator ❐ Integrated upstream pull-up resistor ❐ Integrated pull-down resistors for all downstream ports ❐ Integrated upstream/downstream termination resistors
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Integrated port status indicator control 12 MHz +/- 500 ppm external crystal with drive level 600 µW (integrated PLL) clock input with optional 27/48 MHz oscillator clock input ❐ Internal power failure detection for ESD recovery Downstream port management ❐ Support individual and ganged mode power management ❐ Overcurrent detection within 8 mS ❐ Two port status indicators per downstream port ❐ Slew rate control for EMI management Maximum configurability ❐ VID and PID are configurable through external EEPROM ❐ Number of ports, removable/non-removable ports are configurable through EEPROM and I/O pin configuration ❐ I/O pins can configure gang/individual mode power switching, reference clock source and polarity of power switch enable pin ❐ Configuration options also available through mask ROM Available in space saving 48-pin (7 × 7 mm) TQFP and 28-pin (5 × 5 mm) QFN packages Supports 0 °C to 70 °C temperature range
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Block Diagram – CY7C65632
D+ 12/27/48 MHz OSC-in OR 12 MHz Crystal
D-
MCU RAM Serial Interface Engine HS USB Control Logic ROM
I2C / SPI
USB 2.0 PHY PLL USB Upstream Port
5V i/p (for internal regulator) NC (for external regulator) Transaction Translator 1.8V Hub Repeater 3.3V Regulator
Routing Logic
3.3V i/p (with ext. reg. & 28 QFN) NC (with ext. reg. & 48 TQFP) 3.3V o/p (for int. reg.)
USB Downstream Port 1 USB 2.0 PHY Port Control
USB Downstream Port 2 USB 2.0 PHY Port Control
USB Downstream Port 3 USB 2.0 PHY Port Control
USB Downstream Port 4 USB 2.0 PHY Port Control
P W R # [1]
O V R # [1]
P W R # [2]
P W R # [3]
P W R # [4]
O V R # [2]
O V R # [3]
D+ D-
LED
D+ D-
LED
D+ D-
LED
O V R # [4]
D+ D-
LED
Cypress Semiconductor Corporation Document Number: 001-67568 Rev. *A
•
198 Champion Court
•
San Jose, CA 95134-1709
• 408-943-2600 Revised June 30, 2011
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PRELIMINARY
CY7C65632
Contents
Introduction ....................................................................... 3 USB Serial Interface Engine ........................................ 3 HS USB Control Logic ................................................. 3 Hub Repeater .............................................................. 3 MCU ............................................................................ 3 Transaction Translator ................................................ 3 Port Control ................................................................. 3 Applications ...................................................................... 3 Functional Overview ........................................................ 4 System Initialization ..................................................... 4 Upstream Port ............................................................. 4 Downstream Ports ....................................................... 4 Power Switching .......................................................... 4 Pin Configuration CY7C65632 – 48 TQFP ...................... 6 Pin Description for 48-Pin Package ................................ 8 Pin Description for 28-Pin Package .............................. 10 EEPROM Configuration Options ................................... 11 Pin Configuration Options ............................................. 12 Power-on Reset ......................................................... 12 Gang/Individual Power Switching Mode .................... 12 Features Supported in 48-pin and 28-pin Packages . 12 Power Switch Enable Pin Polarity ............................. 12 Port Number Configuration ........................................ 12 Non Removable Ports Configuration ......................... 13 Reference Clock Configuration ................................. 13 Electrical Characteristics ............................................... 14 Absolute Maximum Ratings ....................................... 14 Operating Conditions ................................................. 14 AC Electrical Characteristics ..................................... 15 Ordering Information ...................................................... 16 Ordering Code Definitions ......................................... 16 Package Diagrams .......................................................... 17 Acronyms ........................................................................ 18 Document Conventions ................................................. 18 Units of Measure ....................................................... 18 Document History Page ................................................. 19 Sales, Solutions, and Legal Information ...................... 20 Worldwide Sales and Design Support ....................... 20 Products .................................................................... 20 PSoC Solutions ......................................................... 20
Document Number: 001-67568 Rev. *A
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PRELIMINARY
CY7C65632
Introduction
HX2VL™ is Cypress’s next generation family of high performance, very low power USB 2.0 hub controllers. HX2VL has integrated upstream and downstream transceivers; a USB Serial Interface Engine (SIE); USB Hub Control and Repeater logic; and Transaction Translator (TT) logic. Cypress has also integrated external components such as voltage regulator and pull-up/pull-down resistors, reducing the overall bill of materials required to implement a USB hub system. The CY7C65632 is a part of the HX2VL portfolio. This device option is for ultra low power but high performance applications that require up to four downstream ports. All downstream ports share a single transaction translator. The CY7C65632 is available in 48 pin TQFP and 28 pin QFN package options. All device options are supported by Cypress’s world class reference design kits, which include board schematics, bill of materials, Gerber files, Orcad files, and thorough design documentation.
MCU
HX2VL has MCU with 2 K ROM and 64 byte RAM. The MCU operates with a 12 MHz clock to decode USB commands from host and respond to the host. It can also handle GPIO settings to provide higher flexibility to the customers and control the read interface to the EEPROM which has extended configuration options. The MCU is programmable while manufactoring in the factory as per customer needs.
Transaction Translator
The Transaction Translator translates data from one speed to another. A TT takes high speed split transactions and translates them to full or low speed transactions when the hub is operating at high speed (the upstream port is connected to a high speed host controller) and has full or low speed devices attached. The operating speed of a device attached on a downstream port determines whether the routing logic connects a port to the TT or to hub repeater. When the upstream host and downstream device are functioning at different speeds, the data is routed through the TT. In all other cases, the data is routed through the repeater. For example, If a full or low speed device is connected to the high speed host upstream through the hub, then the data transfer route includes TT. If a high speed device is connected to the high speed host upstream through the hub, the transfer route includes the repeater. When the hub is connected to a full speed host controller upstream, then high speed peripheral does not operate at its full capability. These devices only work at full speed. Full and low speed devices connected to this hub operate at their normal speed.
HX2VL Architecture
The logic block diagram on Page 1 shows the HX2VL single TT hub architecture.
USB Serial Interface Engine
The Serial Interface Engine (SIE) allows HX2VL to communicate with the USB host. The SIE handles the following USB activities independently of the Hub Control Block.
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Bit stuffing and unstuffing Checksum generation and checking TOKEN type identification Address checking.
Port Control
The downstream ‘Port Control’ block handles the connect/disconnect and over current detection as well as the power enable and LED control. It also generates the control signals for the downstream transceivers.
HS USB Control Logic
‘Hub Control’ block co-ordinates enumeration, suspend and resume. It generates status and control signals for host access to the hub. It also includes the frame timer that synchronizes the hub to the host. It has status/control registers which function as the interface to the firmware in the MCU.
Applications
Typical applications for the HX2VL device family are:
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Docking stations Standalone hubs Monitor hubs Multi-function printers Digital televisions Advanced port replicators Keyboard hubs Gaming consoles
Hub Repeater
The Hub Repeater manages the connectivity between upstream and downstream facing ports that are operating at the same speed. It supports full or low speed connectivity and high speed connectivity. According to the USB 2.0 specification, the HUB Repeater provides the following functions:
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Sets up and tears down connectivity on packet boundaries Ensures orderly entry into and out of ‘Suspend’ state, including proper handling of remote wakeups.
Document Number: 001-67568 Rev. *A
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CY7C65632
Functional Overview
The Cypress CY7C65632 USB 2.0 Hubs are low power hub solutions for USB which provide maximum transfer efficiency. The CY7C65632 USB 2.0 Hubs integrate 1.5 kohm upstream pull-up resistors for full speed operation and all downstream 15 kohm pull-down resistors and series termination resistors on all upstream and downstream D+ and D– pins. This results in optimization of system costs by providing built-in support for the USB 2.0 specification.
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Performs a USB Reset on the corresponding port Puts the port in an enabled state Enables babble detection after the port is enabled.
Babble consists of a non idle condition on the port after EOF2. If babble is detected on an enabled port, that port is disabled. A ClearPortEnable request from the host also disables the specified port. Downstream ports can be individually suspended by the host with the SetPortSuspend request. If the hub is not suspended, a remote wakeup event on that port is reflected to the host through a port change indication in the Hub Status Change Endpoint. If the hub is suspended, a remote wakeup event on this port is forwarded to the host. The host may resume the port by sending a ClearPortSuspend command.
System Initialization
On power up, CY7C65632 has an option to enumerate from the default settings in the mask ROM or from reading an external EEPROM for configuration information. At the most basic level, this EEPROM has the Vendor ID (VID) and the Product ID (PID), for the customer's application. For more specialized applications, other configuration options can be specified. See EEPROM Configuration Options for more details. CY7C65632 verifies the checksum before loading the EEPROM contents as the descriptors.
Power Switching
The CY7C65632 includes interface signals for external port power switches. Both ganged and individual (per-port) configurations are supported by pin strapping, see Pin Configuration Options. After enumerating, the host may power each port by sending a SetPortPower request for that port. Power switching and overcurrent detection are managed using respective control signals (PWR#[n] and OVR#[n]) which are connected to an external power switch device. Both High/Low enabled power switches are supported and the polarity is configured through GPIO setting, see Pin Configuration Options.
Enumeration
The device checks if VBUSPOWER (connected to up-stream VBUS) is high, CY7C65632 enables the pull-up resistor on D+ to indicate its presence to the upstream hub, after which a USB Bus Reset is expected. After a USB Bus Reset, CY7C65632 is in an unaddressed, unconfigured state (configuration value set to ’0’). During the enumeration process, the host sets the hub's address and configuration. After the hub is configured, the full hub functionality is available.
Overcurrent Detection
The OVR#[n] pins of the CY7C65632 series are connected to the respective external power switch's port overcurrent indication (output) signals. After detecting an overcurrent condition, hub reports overcurrent condition to the host and disables the PWR#[n] output to the external power device.
Upstream Port
The upstream port includes the transmitter and the receiver state machine. The transmitter and receiver operate in high speed and full speed depending on the current hub configuration. The transmitter state machine monitors the upstream facing port while the Hub Repeater has connectivity in the upstream direction. This machine prevents babble and disconnect events on the downstream facing ports of this hub from propagating and causing the hub to be disabled or disconnected by the hub to which it is attached.
Port Indicators
The USB 2.0 port indicators are also supported directly by CY7C65632. According to the specification, each downstream port of the hub optionally supports a status indicator. The presence of indicators for downstream facing ports is specified by bit 7 of the wHubCharacteristics field of the hub class descriptor. The default CY7C65632 descriptor specifies that the port indicators are supported. The CY7C65632 port indicators has two modes of operation: automatic and manual. On power up the CY7C65632 defaults to automatic mode, where the color of the Port Indicator (green, amber, off) indicates the functional status of the CY7C65632 port. The LEDs are turned off when the device is suspended
Downstream Ports
The CY7C65632 supports a maximum of four downstream ports, each of which may be marked as usable or removable in the EEPROM configuration, see EEPROM Configuration Options. Additionally, number of downstream ports can also be configured by pin strapping, see Pin Configuration Options. Downstream D+ and D– pull-down resistors are incorporated in CY7C65632 for each port. Before the hubs are configured, the ports are driven SE0 (Single Ended Zero, where both D+ and D– are driven low) and are set to the unpowered state. When the hub is configured, the ports are not driven and the host may power the ports by sending a SetPortPower command for each port. After a port is powered, any connect or disconnect event is detected by the hub. Any change in the port state is reported by the hubs back to the host through the Status Change Endpoint (endpoint 1). On receipt of SetPortReset request for a port with a device connected, the hub does as follows: Document Number: 001-67568 Rev. *A
PORT STATUS INDICATOR
LED
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CY7C65632
Note Pin-strapping GREEN#[1] and GREEN#[2] enables proprietary function that may affect the normal functionality of HX2VL. Configuring Port #1 and #2 as non-removable by pin-strapping should be avoided.
5V to 3.3V Regulator
5V to 3.3V Regulator
Power Regulator
CY7C65632 requires 3.3 V source power for normal operation of internal core logic and USB physical layer (PHY). The integrated low-drop power regulator converts 5 V power input from USB cable (Vbus) to 3.3 V source power. The 3.3 V power output is guaranteed by an internal voltage reference circuit when the input voltage is within the 4 V to 5.5 V range. The regulator’s maximum current loading is 150 mA, which provides tolerance margin over CY7C65632’s normal power consumption of below 100 mA. The on chip regulator has a quiescent current of 28 uA.
NC NC NC
VREG
VCC
VREG
VCC
CY7C65632 48 Pin
VCC_A VCC_D VCC_A
CY7C65632 28 Pin
VCC_D
External Regulation Scheme
CY7C65632 supports both external regulation and internal regulation schemes. When an external regulation is chosen, then for the 48 Pin package, VCC and VREG are to be left open with no connection. The external regulator output 3.3 V has to be connected to VCC_A and VCC_D pins. This connection has to be done externally, on board. For the 28 Pin package, the 3.3 V output from the external regulator has to be connected to VREG, VCC_A and VCC_D. The VCC pin has to be left open with no connection. From the external input 3.3 V, 1.8 V is internally generated for the chip’s internal usage.
External Regulation Scheme
Internal Regulation Scheme
When the built-in internal regulator is chosen, then the VCC pin has to be connected to a 5 V, in both 48 pin and 28 pin packages. Internally, the built-in regulator generates a 3.3 V and 1.8 V for the chip’s internal usage. Also a 3.3 V output is available at VREG pin, that has to be connected externally to VCC_A and VCC_D.
3.3V 5V 3.3V 5V
VREG
VCC
VREG
VCC
CY7C65632 48 Pin
VCC_A VCC_D
CY7C65632 28 Pin
VCC_A VCC_D
Internal Regulation Scheme
Document Number: 001-67568 Rev. *A
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CY7C65632
Pin Configuration CY7C65632 – 48 TQFP
GREEN[1] / SPI_SK / FIXED_PORT1
AMBER[1] / SPI_CS
PWR#[1] / I2C_SDA
SELFPWR
PWR#[2]
OVR#[1]
OVR#[2]
VCC_D
SEL27
GANG
VREG 48 1
VCC 47
45
44
38
39
37
42
40
43
46
41
VCC_A
36
AMBER[2] / SPI_DI / PWR_PIN_POL GREEN[2] / SPI_DO / FIXED_PORT2 VCC_D AMBER[3] / SET_PORT_NUM2 GREEN[3] / FIXED_PORT3 PWR#[3]
GND
2
35
D-
3
34
D+
4
33
DD-[1]
5
32
DD+[1]
6
31
VCC_A
7
30
OVR#[3]
GND
8
DD-[2]
9
CY7C65632 48 TQFP
29
PWR#[4]
28
OVR#[4]
DD+[2]
10
27
TEST / SCL
RREF
11
26
RESET#
VCC_A
12 13 GND 14 XIN 15 XOUT 16 VCC_A 17 DD-[3] 18 DD+[3] 19 VCC_A 20 GND 21 DD-[4] 22 DD+[4] 23 GREEN[4] / FIXED_PORT4 24 AMBER[4] / SET_PORT_NUM1
25
SEL48
Document Number: 001-67568 Rev. *A
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CY7C65632
Pin Configuration CY7C65632 – 28 QFN
SELFPWR OVR # [1] OVR # [2] GANG
VREG 28
VCC 27
SDA 26
25
24
23
22 VCC_ D OVR # [3] OVR # [4] TEST/SCL RESET# DD + [4] DD - [4]
DD+ DD - [1] DD + [1] VCC_ A DD - [2] DD + [2]
1 2 3 4 5 6 7 10 11 12 13 14 8 RREF 9 VCC_A
21 20 19 18 17 16 15
CY7C65632
28 QFN
DD - [3] XIN DD + [3] XOUT VCC_A
Document Number: 001-67568 Rev. *A
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CY7C65632
Pin Description for 48-Pin Package
Pin Types: I = Input, O = Output, P = Power/Ground., Z = High Impedance, RDN = Pad internal Pull Down Resistor, RUP = Pad internal Pull Up Resistor. Table 1. Pin Assignments Name Power and Clock VCC_A VCC_A VCC_A VCC_A VCC_A VCC_D VCC_D VCC VREG GND GND GND GND XIN XOUT SEL48/SEL27 48TQFP pin no. 1 7 12 16 19 34 38 47 48 2 8 13 20 14 15 25/44 Type Description
P P P P P P P P P P P P P I O I
VCC_A. 3.3 V analog power to the chip. VCC_A. 3.3 V analog power to the chip. VCC_A. 3.3 V analog power to the chip. VCC_A. 3.3 V analog power to the chip. VCC_A. 3.3 V analog power to the chip. VCC_D. 3.3 V digital power to the chip. VCC_D. 3.3 V digital power to the chip. VCC. 5 V input to the internal regulator; NC if using external regulator VCC. 5 - 3.3 V regulator o/p during internal regulation; NC if using external regulator. GND. Connect to Ground with as short a path as possible. GND. Connect to Ground with as short a path as possible. GND. Connect to Ground with as short a path as possible. GND. Connect to Ground with as short a path as possible. 12 MHz crystal clock input, or 12/27/48 MHz clock input 12 MHz Crystal OUT 00: Reserved 01: 48 MHz OSC-in 10: 27 MHz OSC-in 11: 12 MHz Crystal or OSC-in Active LOW Reset. External reset input, default pull high 10 K Ohm; When RESET = low, whole chip is reset to the initial state Self Power. Input for selecting self/bus power. 0 is bus powered, 1 is self powered. GANG Default is input mode after power-on-reset. Gang Mode: Input:1 -> Output is 0 for Normal Operation and 1 for Suspend Individual Mode: Input:0 -> Output is 1 for Normal Operation and 0 for Suspend Refer to Gang/Individual Power Switching Modes in Pin Configuration Options Section for details 650 ohm resistor must be connected between RREF and Ground
RESET# SELFPWR GANG
26 37 39
I I I/O
RREF System Interface Test I2C_SCL Upstream Port D– D+ Downstream Port 1 DD–[1] DD+[1] AMBER[1] SPI_CS
11 27
I/O
I(RDN) Test: 0: Normal Operation & 1: Chip will be put in test mode I/O(RDN I2C_SCL: Can be used as I2C clock pin to access I2C EEPROM ) I/O/Z I/O/Z Upstream D– Signal. Upstream D+ Signal.
3 4 5 6 46
I/O/Z Downstream D– Signal. I/O/Z Downstream D+ Signal. O(RDN) LED. Driver output for Amber LED. Port Indicator Support. Default is Active LOW. SPI_CS. Can be used as chip select to access external SPI EEPROM. O(RDN)
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CY7C65632
Pin Types: I = Input, O = Output, P = Power/Ground., Z = High Impedance, RDN = Pad internal Pull Down Resistor, RUP = Pad internal Pull Up Resistor. Table 1. Pin Assignments Name GREEN[1] SPI_SK FIXED_PORT1 OVR#[1] PWR#[1] I2C_SDA Downstream Port 2 DD–[2] DD+[2] AMBER[2] SPI_DI PWR_PIN_POL GREEN[2] SPI_DO FIXED_PORT2 OVR#[2] PWR#[2] Downstream Port 3 DD–[3] DD+[3] AMBER[3] SET_PORT_NUM2 GREEN[3] FIXED_PORT3 OVR#[3] PWR#[3] Downstream Port 4 DD–[4] DD+[4] AMBER[4] SET_PORT_NUM1 GREEN[4] FIXED_PORT4 OVR#[4] PWR#[4] 30 31 21 22 24 42 43 48TQFP pin no. 45 Type Description
O(RDN) LED. Driver output for Green LED. Port Indicator Support. Default is Active LOW. SPI_SK. Can be used as SPI Clock to access external SPI EEPROM. O(RDN) FIXED_PORT1. At POR used to set Port1 as non removable port. Refer pin configuI(RDN) ration Section I(RUP) Overcurrent Condition Detection Input. Default is Active LOW O/Z Power Switch Driver Output. Default is Active LOW. I/O I2C_SDA. Can be used as I2C Data pin, connected with I2C EEPROM. I/O/Z I/O/Z Downstream D– Signal. Downstream D+ Signal.
9 10 36
35
40 41 17 18 33
O(RDN) LED. Driver output for Amber LED. Port Indicator Support. Default is Active LOW. SPI_DI. Can be used as Data Out to access external SPI EEPROM. O(RDN) PWR_PIN_POL. Used for power switch enable pin polarity setting. Refer ConfiguI(RDN) ration Section O(RDN) LED. Driver output for Green LED. Port Indicator Support. Default is Active LOW. SPI_DO. Can be used as Data In to access external SPI EEPROM. I(RDN) FIXED_PORT2. At POR used to set Port2 as non removable port. Refer Configuration I(RDN) Section I(RUP) Overcurrent Condition Detection Input. Default is Active LOW O/Z Power Switch Driver Output. Default is Active LOW I/O/Z Downstream D– Signal. I/O/Z Downstream D+ Signal. O(RDN) LED. Driver output for Amber LED. Port Indicator Support. Default is Active LOW. SET_PORT_NUM2. Used to set port numbering along with SET_PORT_NUM1. Refer I(RDN) pin configuration section. O(RDN) LED. Driver output for Green LED. Port Indicator Support. Default is Active LOW. FIXED_PORT3. At POR used to set Port3 as non removable port. Refer pin configuI(RDN) ration section. I(RUP) Overcurrent Condition Detection Input. Default is Active LOW. O/Z Power Switch Driver Output. Default is Active LOW. I/O/Z Downstream D– Signal. I/O/Z Downstream D+ Signal. O(RDN) LED. Driver output for Amber LED. Port Indicator Support. Default is Active LOW. SET_PORT_NUM1. Used to set port numbering along with SET_PORT_NUM2. Refer I(RDN) configuration Section. O(RDN) LED. Driver output for Green LED. Port Indicator Support. Default is Active LOW. FIXED_PORT4. At POR used to set Port4 as non removable port. Refer configuration I(RDN) Section. I(RUP) Overcurrent Condition Detection Input. Default is Active LOW. O/Z Power Switch Driver Output. Default is Active LOW.
32
23
28 29
Document Number: 001-67568 Rev. *A
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CY7C65632
Pin Description for 28-Pin Package
Pin Types: I = Input, O = Output, P = Power/Ground., Z = High Impedance, RDN = Pad internal Pull Down Resistor, RUP = Pad internal Pull Up Resistor. Table 2. Pin Assignments Name Power and Clock VCC_A VCC_A VCC_A VCC_D VCC VREG XIN XOUT RESET# SELFPWR GANG 28QFN pin no. 5 9 14 21 27 28 10 11 17 22 23 Type P P P P P P I O I I I/O Description VCC_A. 3.3 V analog power to the chip. VCC_A. 3.3 V analog power to the chip. VCC_A. 3.3 V analog power to the chip. VCC_D. 3.3 V digital power to the chip. VCC. 5 V input to the internal regulator; NC if using external regulator VCC. 5 - 3.3 V regulator o/p during internal regulation; 3.3 V i/p if using external regulator. 12 MHz crystal clock input, or 12/27/48 MHz clock input 12 MHz Crystal OUT Active LOW Reset. External reset input, default pull high 10 K Ohm; When RESET = low, whole chip is reset to the initial state Self Power.Input for selecting self/bus power. 0 is bus powered, 1 is self powered. GANG Default is input mode after power-on-reset. Gang Mode: Input:1 -> Output is 0 for Normal Operation and 1 for Suspend Individual Mode: Input:0 -> Output is 1 for Normal Operation and 0 for Suspend Refer to Gang/Individual Power Switching Modes in Pin Configuration Options Section for details 650 ohm resistor must be connected between RREF and Ground
RREF System Interface Test SCL SDA Upstream Port D– D+ Downstream Port 1 DD–[1] DD+[1] OVR#[1] Downstream Port 2 DD–[2] DD+[2] OVR#[2] Downstream Port 3 DD–[3] DD+[3] OVR#[3] Downstream Port 4 DD–[4] DD+[4] OVR#[4] GND
8 18
I/O
26 1 2 3 4 25 6 7 24 12 13 20 15 16 19 PAD
I(RDN) Test: 0: Normal Operation & 1: Chip will be put in test mode I/O(RDN SCL: I2C Clock pin. ) I/O SDA: I2C Data pin. I/O/Z I/O/Z Upstream D– Signal. Upstream D+ Signal.
I/O/Z Downstream D– Signal. I/O/Z Downstream D+ Signal. I(RUP) Overcurrent Condition Detection Input. Default is Active LOW I/O/Z Downstream D– Signal. I/O/Z Downstream D+ Signal. I(RUP) Overcurrent Condition Detection Input. Default is Active LOW I/O/Z Downstream D– Signal. I/O/Z Downstream D+ Signal. I(RUP) Overcurrent Condition Detection Input. Default is Active LOW. GND in 2 port parts. I/O/Z I/O/Z I(RUP) P Downstream D– Signal. Downstream D+ Signal. Overcurrent Condition Detection Input. Default is Active LOW. GND in 2 port parts. Ground pin for the chip. It is the solderable exposed pad beneath the chip. Refer Figure 2 on page 17.
Document Number: 001-67568 Rev. *A
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CY7C65632
EEPROM Configuration Options
Systems using CY7C65632 have the option of using the default descriptors to configure the hub. Otherwise, it must have an external EEPROM for the device to have a unique VID, and PID. The CY7C65632 can communicate with an SPI (microwire) EEPROM like 93C46 or I2C EEPROM like 24C02. Example EEPROM connections are as shown in the following figure.
S P I E E P R O M C o n n e ctio n VDD
when SPI EEPROM is present. Default VID is 0x4B4, PID is Byte 00h 01h 02h 03h 04h 05h 06h 07h 08h 09h - 0Fh 10h 11h - 3Fh 40h 41h - 6Fh 70h 71h to 80h onwards 0x6570. Byte 0: VID (LSB) Least Significant Byte of Vendor ID Byte 1: VID (MSB) Most Significant Byte of Vendor ID Byte2: PID (LSB) Least Significant Byte of Product ID Byte 3: PID (MSB)] Most Significant Byte of Product ID Byte 4: ChkSum CY7C65632 will ignore the EEPROM settings if ChkSum is not equal to VID_LSB + VID_MSB + PID_LSB + PID_MSB +1 Byte 5: Reserved Set to FF Byte 6: RemovablePorts RemovablePorts[4:1] are the bits that indicates whether the device attached to the corresponding downstream port is removable (set to 0). Bit 1 corresponds to Port 1, Bit 2 to Port 2 and so on. These bit values are reported appropriately in the HubDescriptor:DeviceRemovable field. Bits 0,5,6,7 are set to 0. Byte 7: Port Number Port Number values must be 1 to 4 Byte 8: Maximum Power This value is reported in the Configuration Descriptor: bMax-Power field and is the current in 2 mA increments that is required from the upstream hubs. The allowed range is 00h (0 mA) to FAh(500 mA) Value VID_LSB VID_MSB PID_LSB PID_MSB ChkSum Reserved - FE Removable Ports Port Number Maximum Power Reserved - FF (except 0Bh which is FE) Vendor String Length Vendor String (ASCII code) Product String Length Product String (ASCII Code) Serial Number Length Serial Number String
A M B E R # [1 ] G R E E N # [1 ] A M B E R # [2 ] G R E E N # [2 ]
CS SK DI DO AT93C 46
VCC NC1 NC2 GND
I2 C E E P R O M C o n n e ctio n
VDD
A0 A1 A2 GND AT24C 02
VCC WP SCL SDA TEST P W R # [1 ]
Note The 28 pin QFN package includes only support for I2C EEPROM like ATMEL/24C02N_SU27 D, MICROCHIP/4LC028 SN0509, SEIKO/S24CS02AVH9. The 48 pin TQFP package includes both I2C and SPI EEPROM connectivity options. In this case, user can use either SPI or I2C connectivity at a time for communicating to EEPROM. The 48 pin package supports ATMEL/AT93C46DN-SH-T, in addition to the above mentioned families. HX2VL can only read from SPI EEPROM. So, field programming of EEPROM is supported only for I2C EEPROM. CY7C65632 verifies the check sum after power on reset and if validated loads the configuration from the EEPROM. To prevent this configuration from being overwritten, amber LED is disabled
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Byte 9 - 15: Reserved Set to FF Byte 16: Vendor String Length Length of the Vendor String Byte 17 - 63: Vendor String Value of Vendor String. Strings must comply with the USB specification. The first byte (Byte 16) must be the length of the string in bytes, the second must be 0x03, and the string must be in ASCII code. Byte 64: Product String Length Length of the Product String Byte 65- 111: Product String Value of Product String in ASCII code Byte 112: Serial Number Length Length of the Serial Number
The individual or gang mode is decided within 20 us after power on reset. 50ms after reset, this pin is changed to output mode. CY7C65632 outputs the suspend flag, after it is globally suspended. Pull-down resistor of greater than 100 K is needed for Individual mode and a pull-up resistor greater than 100 K is needed for Gang mode. Figure below shows the suspend LED indicator schematics. The polarity of LED must be followed, otherwise the suspend current will be over the spec limitation (2.5 mA).
VDD (3.3V) VDD (3.3V) PCB GANG MODE 100K GANG/SUSPND SUSPEND OUT SUSPEND INDICATOR 100K INDIVIDUAL MODE 0 : INDIVIDUAL MODE 1: GANG MODE Silicon
Byte 113 onwards: Serial Number String Serial Number String in ASCII code.
Pin Configuration Options
Power-on Reset
The power on reset can be triggered by external reset or internal circuitry. The internal reset is initiated, when there is an unstable power event for silicon’s internal core power (3.3 V). The internal reset is released after approximately 2.7 micro-seconds of stable internal core voltage. The external reset pin, continuously senses the voltage level (5 V) on the upstream VBUS as shown in the figure. In the event of USB plug/unplug or drop in voltage, the external reset is triggered. This reset trigger can be configured using the resistors R1 and R2. Cypress recommends that the reset time applied in external reset circuit should be longer than that of the internal reset time.
PCB VBUS (External 5V) Silicon Ext. VBUS power-good detection circuit input (Pin"RESET#") EXT R2 INT Global Reset#
Features Supported in 48-pin and 28-pin Packages
Supported Features Port number configuration Non-Removable port configuration Reference clock configuration Power switch enable polarity LED Indicator 48 Pin Yes Yes Yes Yes Yes 28 Pin No No No No No
Power Switch Enable Pin Polarity
The pin polarity is set Active-High by pin-strapping the PWR_PIN_POL pin to 1 and Active-Low by pin-strapping the PWR_PIN_POL pin to 0. Thus, both kinds of power switches are supported. This feature is not supported in QFN-28 package.
Port Number Configuration
In addition to the EEPROM configuration, as described above, configuring the hub for 2/3/4 ports is also supported using pin-strapping SET_PORT_NUM1 and SET_PORT_NUM2, as shown in following table. Pin strapping option is not supported in the 28-QFN package. SET_PORT_NUM2 SET_PORT_NUM1 1 1 0 0 1 0 1 0 # Ports 1 (Port 1) 2 (Port 1/2) 3 (Port 1/2/3) 4 (All ports) Page 12 of 20
R1
Int. 3.3V power-good detection circuit input (USB PHY reset)
Gang/Individual Power Switching Mode
A single pin is used to set individual / gang mode as well as output the suspend flag. This is done to reduce the pin count. Document Number: 001-67568 Rev. *A
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Non Removable Ports Configuration
In embedded systems, downstream ports that are always connected inside the system, can be set as non-removable (always connected) ports, by pin-strapping the corresponding FIXED_PORT# pins 1~4 to High, before power on reset. At POR, if the pin is pull high, the corresponding port is set to non-removable. This is not supported in the 28-QFN package.
Reference Clock Configuration
This hub can support, optional 27/48 MHz clock source. When on-board 27/48 MHz clock is present, then using this feature, system integrator can further reduce the BOM cost by eliminating the external crystal. This is available through GPIO pin configuration shown as follows. This is not supported in the 28-QFN package SEL48 0 1 1 SEL27 1 0 1 Clock Source 48 MHz OSC-in 27 MHz OSC-in 12 MHz X’tal/OSC-in
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Electrical Characteristics
Absolute Maximum Ratings
Exceeding maximum ratings may shorten the useful life of the device. User guidelines are not tested. Storage Temperature ............................... –55 °C to +100 °C Ambient Temperature .................................... 0 °C to +70 °C 5 V Supply Voltage to Ground Potential ......–0.5 V to +6.0 V 3.3 V Supply Voltage to Ground Potential ...–0.5 V to +3.6 V Voltage at Open Drain Input Pins (OVR#1-4, SELFPWR, RESET#) ......................................................–0.5 V to +5.5 V 3.3 V Input Voltage for digital I/O ..................–0.5 V to +3.6 V FOSC (Oscillator or Crystal Frequency) ...... 12 MHz ± 0.05% Table 3. DC Electrical Characteristics Parameter PD VIH VIL Il VOH VOL RDN RUP CIN ISUSP ICC Description Power Dissipation Input High Voltage Input Low Voltage Input Leakage Current Output Voltage High Output Low Voltage Pad internal pull-down Resistor Pad internal pull-up Resistor Input Pin Capacitance Suspend Current Supply Current 4 Active Ports Full Speed Host, Full Speed Devices High Speed Host, High Speed Devices High Speed Host, Full Speed Devices 3 Active Ports Full Speed Host, Full Speed Devices High Speed Host, High Speed Devices High Speed Host, Full Speed Devices 2 Active Ports Full Speed Host, Full Speed Devices High Speed Host, High Speed Devices High Speed Host, Full Speed Devices 1 Active Ports Full Speed Host, Full Speed Devices High Speed Host, High Speed Devices High Speed Host, Full Speed Devices No Active Ports Full Speed Host High Speed Host USB Transceiver is USB 2.0 certified in low, full and high speed modes. 88.7 81.9 88.2 79.1 72.9 75.9 68.1 61.9 64.9 57.1 51.9 54.7 42.8 44.2 99.78 91.44 97.23 94.6 80.92 92.02 80.53 70.55 77.46 66.66 60.32 63.81 49.02 49.78 mA mA mA mA mA mA mA mA mA mA mA mA mA mA Full Speed / Low Speed mode High Speed mode 4 4.5 786 Full Speed/ Low Speed (0 < VIN < VCC) High Speed mode (0 < VIN < VCC) IOH = 8 mA IOL= 8 mA 29 80 59 108 –10 –5 2.4 0.4 135 140 20 5 903 0 Conditions Excluding USB signals Min 366.5 2 0.8 +10 +5 Typ Max 426.5 Unit mW V V μA μA V V KOhm KOhm pF pF μA
Operating Conditions
Ambient Temperature ..................................... 0°C to +70 °C Ambient Max Junction Temperature ............. 0°C to +125 °C 5 V Supply Voltage to Ground Potential ....4.75 V to +5.25 V 3.3 V Supply Voltage to Ground Potential ...3.15 V to +3.6 V Input Voltage for USB signal pins ..................0.5 V to +3.6 V Voltage at Open Drain Input Pins ................–0.5 V to +5.0 V Thermal Characteristics 48 TQFP ........................ 75.8 °C/W Thermal Characteristics 28 QFN .......................... 32.4 °C/W
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AC Electrical Characteristics
Both the upstream USB transceiver and all four downstream transceivers have passed the USB-IF USB 2.0 Electrical Certification Testing. The 48 pin TQFP package can support communication to EEPROM using either I2C or SPI. The 28-pin QFN package can support only I2C communication to EEPROM. AC characteristics of these two interfaces to EEPROM are summarized in tables below: Table 4. AC characteristics of SPI EEPROM interface
Symbol tCSS tCSH tSKH tSKL tDIS tDIH tPD1 tPD0
Parameter CS Setup Time CS Hold Time SK High Time SK Low Time DI Setup Time DI Hold Time Output Delay to '1' Output Delay to '0'
Min 3.0 3.0 1.0 2.2 1.8 2.4
Typ
Max
Units
us
1.8 1.8
Table 5. AC characteristics of I2C EEPROM interface
Symbol
fSCL tLOW tHIGH
Parameter SCL Clock Frequency Clock LOW Period Clock HIGH Period
1.8V - 5.5V Min Max 0.0 100 4.7 4.0 4.7 4.7 4.0 4.0 200.0 0 100 0.1 4.5
2.5V - 5.5V Min Max 0.0 400 1.2 0.6 0.6 0.6 0.6 0.6 100.0 0 50 0.1 0.9
Units KHz us us us us us us ns ns ns us
tSU:ST A Start Condition Setup Time tSU:ST O Stop Condition Setup Time tHD:ST A Start Condition Hold Time tHD:ST O Stop Condition Hold Time tSU:DAT Data In Setup Time tHD:DAT Data In Hold Time tDH tAA
Data Out Hold Time Clock to Output
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Ordering Information
Ordering Code CY7C65632-48AXC CY7C65632-28LTXC Device 4 port Single-TT hub (configurable with GPIOs and EEPROM) 4 port Single-TT hub (configurable with GPIOs and EEPROM) Package Type 48-Pin TQFP Bulk 28-Pin QFN Bulk
Ordering Code Definitions
CY 7C XXX XX XX XXX C Temperature grades: Commercial Package type: AX: TQFP (Pb-free) LTX: QFN (Pb-free) Pin count: 28 = 28 pins, 48 = 48 pins Specific product identifier Base part number Marketing code: 7C Company ID: CY = Cypress
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Package Diagrams
The CY7C65632 is available in following packages: Figure 1. 48-Pin TQFP Package Diagram
51-85135 *B
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Figure 2. 28-Pin QFN Package Diagram
TOP VIEW SIDE VIEW BOTTOM VIEW
SEE NOTE 1
NOTES: 1. HATCH AREA IS SOLDERABLE EXPOSED PAD
MLA
0.05 0.025
2. BASED ON REF JEDEC # MO-220 3. PACKAGE WEIGHT: ~0.05gr 4. DIMENSIONS ARE IN MILLIMETERS
10/06/10 10/06/10
001-64621 **
PACKAGE OUTLINE, 28L QFN 5X5X0.8MM, LT2 3.5X3.5 EPAD, SAWN
BOVS
SEE NOTES
001 64621
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Acronyms
The following table lists the acronyms that are used in this document. Table 6. Acronyms Used in this Datasheet Acronym AC ADC API CPU CT ECO EEPROM FSR GPIO GUI HBM LSb LVD MSb Description alternating current analog-to-digital converter application programming interface central processing unit continuous time external crystal oscillator electrically erasable programmable read-only memory full scale range general purpose I/O graphical user interface human body model least-significant bit low voltage detect most-significant bit PC PLL POR PPOR PSoC PWM SC SRAM ICE ILO IMO I/O IPOR
®
Acronym program counter
Description phase-locked loop power on reset precision power on reset Programmable System-on-Chip™ pulse width modulator switched capacitor static random access memory in-circuit emulator internal low speed oscillator internal main oscillator input/output imprecise power on reset
Document Conventions
Units of Measure
The following table lists the units of measure that are used in this document. Table 7. Units of Measure Symbol °C dB fF Hz KB Kbit kHz kΩ MHz MΩ μA μF μH μs μV μVrms decibels femto farad hertz 1024 bytes 1024 bits kilohertz kilohm megahertz megaohm microampere microfarad microhenry microsecond microvolts microvolts root-mean-square Unit of Measure degree Celsius Symbol μW mA ms mV nA ns nV Ω pA pF pp ppm ps sps s V microwatts milliampere millisecond millivolts nanoampere nanosecond nanovolts ohm picoampere picofarad peak-to-peak parts per million picosecond samples per second sigma: one standard deviation volts Unit of Measure
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Document History Page
Document Title: CY7C65632 HX2VL™ Very Low Power USB 2.0 Hub Controller Document Number: 001-67568 Revision ** *A ECN 3183649 3250883 Orig. of Change SSJO/ SWAK SWAK/AASI Submission Date 03/02/2011 New datasheet 06/30/2011 1. In page 6, the pin of the 48-pin TQFP package was named SELF_PWR. It is changed to SELFPWR. 2. In page 9, 10 and 11 the entry against OVR# in the pin assignment table is changed to "Active LOW Overcurrent Condition Detection Input" as it should not say "Default is Active LOW" since the polarity is not configurable. 3. In page 8 and 11, in page assignment table, entry against XOUT is changed to "12-MHz Crystal OUT. (NC if external clock is used)" 4. In page 11, under pin assignment table, entry against XIN is changed to "12-MHz crystal clock input, or 12-MHz clock input" since 28-pin package does not support 27 and 48 MHz. 5. In page 4, under “Port indicators” section added the following as a note “pin-strapping GREEN#[1] and GREEN#[2] enables proprietary function that may affect the normal functionality of HX2VL. Configuring Port #1 and #2 as non-removable by pin-strapping should be avoided”. 6. Added note # 1 on page 9 and is referred to GREEN#[1] and GREEN#[2] under” Pin Description for 48-Pin TQFP Package” on page 8. 7. In section “Power Switch Enable Pin Polarity” on page 13 replaced first two occurrences of the word “setting” with “pin-strapping”. Description of Change
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Sales, Solutions, and Legal Information
Worldwide Sales and Design Support
Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations.
Products
Automotive Clocks & Buffers Interface Lighting & Power Control Memory Optical & Image Sensing PSoC Touch Sensing USB Controllers Wireless/RF cypress.com/go/automotive cypress.com/go/clocks cypress.com/go/interface cypress.com/go/powerpsoc cypress.com/go/plc cypress.com/go/memory cypress.com/go/image cypress.com/go/psoc cypress.com/go/touch cypress.com/go/USB cypress.com/go/wireless
PSoC Solutions
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© Cypress Semiconductor Corporation, 2011. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress. Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement.
Document Number: 001-67568 Rev. *A
Revised June 30, 2011
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