The Mentor Graphics integrated host controller uses patent-pending StorSelect(TM) technology to combine together an IDE host controller with a PCMCIAhost controller into a single core with shared pins to reduce pin count, saving approximately 35 pins. The parallel ATAcontroller supports the PCMCIAand compact Flash protocols simultaneous with IDE/ATAand CF+ protocols. The core supports concurrent overlapped transfers to both IDE/CF+ and PCMCIA/CFdevices. When overlapping transactions occur,the PCMCIA/CF access is given priority.If an IDE/CF+ transaction is in progress when a PCMCIA/CF access request is received, the transfer is automatically paused to allow the PCMCIA/CF access, and the transfer is automatically resumed after the PCMCIA/CF access.
StorSelect Host Controller with Integrated PCMCIA
Overview
Key Features
- Core features:
- Supports ATA and PCMCIA protocols
- Supports compact Flash and CF+ protocols
- Sharing address and data pins reduces pin count
- Overlapping PCMCIA/CF and IDE/CF+ transfers supported
- IDE features:
- Supports PIO, multi-word DMA, and Ultra ATA33/66/100/133
- Supports up to mode 4 timings on PIO mode
- Supports up to mode 2 timings on multi-word DMA
- Supports up to mode 6 timings on Ultra ATA
- SpeedSelect technology allows core timings to be reprogrammed to support any ATA speed and timing mode at any clock frequency
- Full scatter-gather DMAcapability
- Easily configured as primary or secondary controller
- AHB master and slave interfaces
- PCMCIA/CF features:
- Supports PC card and compact Flash devices
- Supports memory and I/O modes
- 8-bit and 16-bit host access
- Supports up to 20 MB/s data transfer rate in memory mode
- Supports up to 17 MB/s data transfer rate in I/O mode
- Conforms to PCMCIAcard 2.1 Standard