Overview
The SL811HST-AXC, produced by Infineon Technologies, is an Embedded USB Host/Slave Controller designed for use in various embedded systems. This controller supports both full-speed (12 Mbps) and low-speed (1.5 Mbps) USB transfer modes, conforming to the USB Specification 1.1. It can operate as either a single USB host or slave device under software control, making it versatile for different application needs. The device is packaged in a 48-pin TQFP and operates with a 3.3 VDC power source, requiring an external 12 or 48 MHz crystal or clock for operation.
Key Specifications
| Specification | Details |
|---|---|
| Package Type | 48-pin TQFP |
| Power Supply | 3.3 VDC |
| Clock Frequency | 12 or 48 MHz crystal or oscillator |
| USB Speed | Full speed (12 Mbps), Low speed (1.5 Mbps) |
| USB Modes | Host and Slave modes |
| Data Path | 8-bit bidirectional data, port I/O (DMA supported in slave mode) |
| Internal Memory | 256-byte internal SRAM buffer |
| Interface Logic | 5 V-tolerant interface |
| Power Modes | Suspend/resume, wake up, and low-power modes supported |
| Physical Connections | Chip select, read and write input strobes, single address line A0 |
Key Features
- Supports both full-speed and low-speed USB transfer in both master and slave modes.
- Automatic detection of either low- or full-speed devices.
- On-chip SIE and USB transceivers.
- On-chip single root HUB support.
- Ping-pong buffers for improved performance.
- Auto-generation of SOF and CRC5/16.
- Auto-address increment mode, saving memory READ/WRITE cycles.
- Development kit including source code drivers available.
- Operates from 12 or 48 MHz crystal or oscillator (built-in DPLL).
Applications
The SL811HST-AXC is suitable for a variety of embedded systems, including those requiring communication with microprocessors, microcontrollers, DSPs, and various bus interfaces such as ISA and PCMCIA. It is particularly useful in applications where both host and slave USB functionalities are needed, such as in industrial control systems, medical devices, and consumer electronics.
Q & A
- What is the package type of the SL811HST-AXC?
The SL811HST-AXC is packaged in a 48-pin TQFP. - What are the supported USB speeds for the SL811HST-AXC?
The device supports both full-speed (12 Mbps) and low-speed (1.5 Mbps) USB transfer modes. - What is the power supply requirement for the SL811HST-AXC?
The device operates with a 3.3 VDC power source. - What clock frequencies does the SL811HST-AXC support?
The device supports 12 or 48 MHz crystal or oscillator frequencies. - Does the SL811HST-AXC support DMA operations?
Yes, it supports DMA operations in slave mode. - What is the internal memory capacity of the SL811HST-AXC?
The device has a 256-byte internal SRAM buffer. - Is the SL811HST-AXC 5V tolerant?
Yes, the I/O interface logic is 5 V-tolerant. - What power modes are supported by the SL811HST-AXC?
The device supports suspend/resume, wake up, and low-power modes. - Is a development kit available for the SL811HST-AXC?
Yes, a development kit including source code drivers is available. - What types of devices can the SL811HST-AXC interface with?
The device can interface with microprocessors, microcontrollers, DSPs, and various bus interfaces such as ISA and PCMCIA.
