CY7C65113-SC Cypress Semiconductor Corp, CY7C65113-SC Datasheet - Page 31

• Manufacturer Part Number: CY7C65113-SC
• Description: IC MCU 8K USB HUB 4 PORT 28-SOIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C65113-SC

• Applications: USB Hub/Microcontroller
• Core Processor: M8
• Program Memory Type: OTP (8 kB)
• Controller Series: USB Hub
• Ram Size: 256 x 8
• Interface: I²C, USB
• Number Of I /o: 11
• Voltage - Supply: 4 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Package Type: SOIC
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: CY3649 - PROGRAMMER HI-LO USB M8428-1339 - KIT LOW SPEED PERSONALITY BOARD
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant
• Other names: 428-1331

16.0
A USB hub is required to support:
These features are mapped onto a hub repeater and a hub controller. The hub controller is supported by the processor integrated
into the CY7C65x13 microcontrollers. The hardware in the hub repeater detects whether a USB device is connected to a
downstream port. The connection to a downstream port is through a differential signal pair (D+ and D–). Each downstream port
provided by the hub requires external R
device connected, the hub reads a LOW (zero) on both D+ and D–. This condition is used to identify the “no connect” state.
The hub must have a resistor R
The hub generates an EOP at EOF1, in accordance with the USB 1.1 Specification (section 11.2.2, page 234) as well as USB
2.0 specification (section 11.2.5, page 304).
16.1
A low-speed (1.5 Mbps) USB device has a pull-up resistor on the D– pin. At connect time, the bias resistors set the signal levels
on the D+ and D– lines. When a low-speed device is connected to a hub port, the hub sees a LOW on D+ and a HIGH on D–.
This causes the hub repeater to set a connect bit in the Hub Ports Connect Status register for the downstream port (see
Figure 16-1). Then the hub repeater generates a Hub Interrupt to notify the microcontroller that there has been a change in the
Hub downstream status. The firmware sets the speed of this port in the Hub Ports Speed Register (see Figure 16-2).
A full-speed (12 Mbps) USB device has a pull-up resistor from the D+ pin, so the hub sees a HIGH on D+ and a LOW on D–. In
this case, the hub repeater sets a connect bit in the Hub Ports Connect Status register and generates a Hub Interrupt to notify
the microcontroller of the change in Hub status. The firmware sets the speed of this port in the Hub Ports Speed Register (see
Figure 16-2)
Connects are recorded by the time a non-SE0 state lasts for more than 2.5 s on a downstream port.
When a USB device is disconnected from the Hub, the downstream signal pair eventually floats to a single-ended zero state. The
hub repeater recognizes a disconnect once the SE0 state on a downstream port lasts from 2.0 to 2.5 s. On a disconnect, the
corresponding bit in the Hub Ports Connect Status register is cleared, and the Hub Interrupt is generated
.
Bit [0..6] : Port x Connect Status (where x = 1..7).
Bit 7 : Reserved.
The Hub Ports Connect Status register is cleared to zero by reset or USB bus reset, then set to match the hardware configuration
by the hub repeater hardware. The Reserved bit [7] should always read as ‘0’ to indicate no connection
.
Document #: 38-08002 Rev. *B
Hub Ports Connect Status
Bit #
Bit Name
Read/Write
Reset
Hub Ports Speed
Bit #
Bit Name
Read/Write
Reset
• Connectivity behavior: service connect/disconnect detection
• Bus fault detection and recovery
• Full-/Low-speed device support
When set to 1, Port x is connected; When set to 0, Port x is disconnected.
Set to 0.
Connecting/Disconnecting a USB Device
USB Hub
Reserved
Reserved
R/W
R/W
7
0
7
0
Connect
UUP
Speed
Status
Port 7
Port 7
R/W
R/W
6
0
6
0
connected between its upstream D+ line and V
UDN
Figure 16-1. Hub Ports Connect Status
resistors from each signal line to ground, so that when a downstream port has no
Connect
Speed
Port 6
Status
Port 6
R/W
R/W
Figure 16-2. Hub Ports Speed
5
0
5
0
Connect
Speed
Status
Port 5
Port 5
R/W
R/W
4
0
4
0
Connect
Speed
Status
Port 4
Port 4
R/W
R/W
3
0
3
0
REG
to indicate it is a full speed USB device.
Connect
Speed
Status
Port 3
Port 3
R/W
R/W
2
0
2
0
Connect
Speed
Status
Port 2
Port 2
R/W
R/W
1
0
1
0
CY7C65013
CY7C65113
Address 0x4A
Address 0x48
Page 31 of 51
Connect
Speed
Status
Port 1
Port 1
R/W
R/W
0
0
0
0