|
|
PDF CY7C65640A Data sheet ( Hoja de datos )
| Número de pieza | CY7C65640A | |
| Descripción | High Speed USB Hub Controller | |
| Fabricantes | Cypress Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de CY7C65640A (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
|
No Preview Available !
CY7C65640A
TetraHub™ High Speed USB
Hub Controller
TetraHub™ High Speed USB Hub Controller
Features
■ USB 2.0 Hub
■ Four Downstream Ports
■ Multiple Transaction Translators - One per Downstream Port
for Maximum Performance
■ VID, PID, and DID configured from External SPI EEPROM
■ 24 MHz External Crystal
■ Small Package - Quad Flat Pack, No Leads (QFN)
■ Integrated Upstream Pull Up Resistor
■ Integrated Downstream Pull Down Resistors for all
Downstream Ports
.
Logic Block Diagram
D+ D–
24 MHz
Crystal
USB 2.0 PHY
PLL
USB Upstream
■ Integrated Upstream and Downstream Series Termination
Resistors
■ Configurable with External SPI EEPROM
❐ Number of Active Ports
❐ Number of Removable Ports
❐ Maximum Power
❐ Hub Controller Power
❐ Power On Timer
❐ Over current Timer
❐ Disable Over current Timer
❐ Enable Full Speed Only
❐ Disable Port Indicators
❐ Gang Power Switching
❐ Enable Single TT Mode Only
❐ Enable NoEOP at EOF1
Serial
Interface
Engine
High speed
USB Control Logic
SPI Communication
Block
SPI_SCK
SPI_SD
SPI_CS
Hub Repeater
Transaction Translator (X4)
TT RAM
Routing Logic
USB Downstream
USB Port Pow- Port
2.0 er Control Sta-
USB Downstream
USB Port Pow- Port
2.0 er Control Sta-
USB Downstream
USB Port Pow- Port
2.0 er Control Sta-
USB Downstream
USB Port Pow- Port
2.0 er Control Sta-
D+ D– PWR#[1 OVR#[1LED D+ D– PWR#[2 OVR#[2LED D+ D– PWR#[3 OVR#[3LED D+ D– PWR#[4 OVR#[4LED
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 38-08019 Rev. *P
• San Jose, CA 95134-1709 • 408-943-2600
Revised November 10, 2014
1 page  
CY7C65640A
Over current Detection
Over current detection includes timed detection of 8 ms by
default. This parameter is configured from the external EEPROM
in a range of 0 ms to 15 ms for both an enabled port and a
disabled port individually. Detection of over on downstream ports
is managed by control pins connected to an external power
switch device.
The OVR[n]# pins of the CY7C65640A series are connected to
the respective external power switch’s port over current
indication (output) signals. Upon detecting an over current
condition, the hub device reports the over current condition to the
host and disables the PWR# output to the external power device.
Port Indicators
The USB 2.0 port indicators are also supported directly by
TetraHub. According to the specification, each downstream port
of the hub supports an optional 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 TetraHub descriptor specifies that port indicators are
supported (wHubCharacteristics, bit 7 is set). If port indicators
are not included in the hub, EEPROM should disable this.
Each port indicator is strategically located directly on the
opposite edge of the port which it is associated with. The
indicator provides two colors: green and amber. This is
implemented as two separate LEDs, one amber and the other
green. A combination of hardware and software control is used
to inform the user of the current status of the port or the device
attached to the port and to guide the user through problem
resolution. Colors and blinking are used to provide information to
the user. The significance of the color of the LED depends on the
operational mode of the TetraHub. There are two modes of
operation for the TetraHub port indicators: automatic and
manual.
On power up, the TetraHub defaults to automatic mode, where
the color of the port indicator (green, amber, off) indicates the
functional status of the TetraHub port. In automatic mode,
TetraHub turns on the green LED whenever the port is enabled
and the amber LED when it detects an over current condition.
The color of the port indicator is set by the port state machine.
Blinking of the LEDs is not supported in automatic mode. Table 1
identifies the mapping of color to port state in automatic mode.
In manual mode, the indicators are under the control of the host,
which can turn on one of the LEDs, or leave them off. This is done
by a system software USB Hub class request. Blinking of the
LEDs is supported in manual mode. The port indicators enable
the user to intervene on any error detection. For example, when
babble is detected on plugging in a defective device, or on
occurrence of an over current condition, the port indicators
corresponding to the downstream port blink green or only light
the amber LED, respectively. Table 2 displays the color definition
of the indicators when TetraHub is in manual mode.
Table 1. Automatic Port State to Port Indicator Color Mapping
Port
Switching
Powered Off
Downstream Facing Hub Port State
Disconnected, Disabled, Not Enabled, Transmit, Suspended, Resuming,
Configured, Resetting, Testing or TransmitR SendEOR, Restart_E/S
With
Off or amber if due to an over Off
current condition
Green
Off
Without Off
Off or amber if due to an
overcurrent condition
Green
Off
Table 2. Port Indicator Color Definitions in Manual Mode
Color Definition
Off
Amber
Green
Blinking Off/Green
Blinking Off/Amber
Blinking Green/Amber
Port State
Not operational
Error condition
Fully operational
Software attention
Hardware attention
Reserved
Note. Information presented in Table 1 and Table 2 is from USB 2.0 specification tables 11-6 and 11-7, respectively.
Document Number: 38-08019 Rev. *P
Page 5 of 26
5 Page 
CY7C65640A
Table 11. Hub Descriptor
Byte
0
1
2
3,4
5
6
7
8
All Speeds
0x09
0x29
0x04[4]
0x0089[4]
0x32[4]
0x64[4]
0x00[4]
0xFF[4]
Field Name
bLength
bDescriptorType
bNbrPorts
wHubCharacteristics
bPwrOn2PwrGood
bHubContrCurrent
bDeviceRemovable
bPortPwrCtrlMask
Description
9 Bytes
HUB descriptor
Number of ports supported
b1, b0: Logical Power Switching Mode
00: Ganged power switching (all ports’ power at once)
01: Individual port power switching (Default in TetraHub)
b2: Identifies a Compound Device,
0: Hub is not part of a compound device (Default in TetraHub),
1: Hub is part of a compound device.
b4, b3: Overcurrent protection mode
00: Global overcurrent protection. The hub reports overcurrent as a
summation of all ports current draw, without a breakdown of individual port
overcurrent status.
01: Individual port overcurrent protection. The hub reports overcurrent on
a per-port basis. Each port has an overcurrent status (Default in
TetraHub).
1X: No overcurrent protection. This option is enabled only for bus-
powered hubs that do not implement overcurrent protection.
b6, b5: TT Think Time
00: TT requires at most 8 FS bit times of inter transaction gap on a
full/low speed downstream bus (Default in TetraHub).
01: TT requires at most 16 FS bit times.
10: TT requires at most 24 FS bit times.
11: TT requires at most 32 FS bit times.
b7: Port indicators supported,
0: Port indicators are not supported on its downstream facing ports and
the PORT_INDICATOR request has no effect.
1: Port indicators are supported on its downstream facing ports and the
PORT_INDICATOR request controls the indicators.
b15...b8: Reserved
Time from when the port is powered to when the power is good on that port
Maximum current requirement for the hub controller
Indicates if the port has a removable device attached
Required for compatibility with software written for 1.0 compliant devices
Note
4. This value is configured through the External EEPROM.
Document Number: 38-08019 Rev. *P
Page 11 of 26
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet CY7C65640A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| CY7C65640 | TetraHub High-speed USB Hub Controller | Cypress Semiconductor |
| CY7C65640A | High Speed USB Hub Controller | Cypress Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |