CBM9001A Overview
The CBM9001A interfaces to devices such as microprocessors, micro- controllers, DSPs, or directly to a variety of buses such as ISA, PCMCIA, and others. The CBM9001A USB Host Controller conforms to USB Specification 1.1. The CBM9001A incorporates USB Serial Interface functionality along with internal full or low speed transceivers.
CBM9001A Key Features
- First USB Host/Slave controller for embedded systems in the market with a standard microprocessor bus interface
- Supports both full speed (12 Mbps) and low speed (1.5 Mbps) USB transfer in both master and slave modes
- Conforms to USB Specification 1.1 for full- and low speed
- Operates as a single USB host or slave under software control
- Automatic detection of either low- or full-speed devices
- 8-bit bidirectional data, port I/O (DMA supported in slave mode)
- On-chip SIE and USB transceivers
- On-chip single root HUB support
- 256-byte internal SRAM buffer
- Ping-pong buffers for improved performance