FDC87W21 Ver la hoja de datos (PDF) - SMSC -> Microchip
Número de pieza
componentes Descripción
Lista de partido
FDC87W21 Datasheet PDF : 164 Pages
| |||
FDC87W21
Power I/O Controller with Fast Infrared Support
FEATURES
• 5 Volt Operation
• Plug & Play 1.0A Compliant
• Supports Eight IRQs, Four DMA Channels,
480 Relocatable Addresses
• Floppy Disk Controller (FDC)
- Compatible with IBM PC/AT Disk Drive
Systems
- Variable Write Precompensation with
Track Selectable Capability
- DMA Enable Logic
- Supports Floppy Disk Drives and Tape
Drives
- Detects All Over-Run and Under-Run
Conditions
- Data Rate and Drive Control Registers
- Built-in Address Mark Detection Circuit
to Simplify the Read Electronics
- IBM PC System Address Decoder
- 24 MHz Crystal Input (48 MHz when for
2 Mbps Fast Tape Drive)
- FDD Anti-Virus Functions with Software
Write Protect and FDD Write Enable
Signal (Write Data Signal Was Forced
to Be Inactive)
- Supports up to Four 3.5-Inch or 5.25-
Inch Floppy Disk Drives
- Completely Compatible with Industry
Standard 82077/ 765A
- Supports
360K/720K/1.2M/1.44M/2.88M Format;
250 Kbps, 300 Kbps, 500 Kbps, 1
Mbps, 2 Mbps Data Transfer Rate
- Supports Perpendicular Recording
Format
- Supports 3-Mode FDD and Win95
Driver
- 16-Byte Data FIFOs
• Serial Ports
- Two High-Speed 16550 Compatible
UARTs with 16-Byte Send/Receive
FIFOs
- MIDI Compatible
- Fully Programmable Serial-Interface
Characteristics:
- 5, 6, 7 or 8-Bit Characters
- Even, Odd or No Parity Bit
Generation/Detection
- 1, 1.5 or 2 Stop Bits Generation
- Internal Diagnostic Capabilities:
- Loop-Back Controls For
Communications Link Fault
Isolation
- Break, Parity, Overrun, Framing
Error Simulation
- Programmable Baud Generator Allows
Division of 1.8461 MHz and 24 MHz by
1 to (216-1)
- Maximum Baud Rate Is up to 911.6 (8
times of 115.2 Kbps) for 1.8461 MHz
and 1.5 Mbps for 24 MHz
• Infrared
- Supports IrDA Version 1.0 SIR Protocol
with Maximum Baud Rate up to 115.2
Kbps
- Supports SHARP ASK-IR Protocol with
Maximum Baud Rate up to 57600 bps
- Supports IrDA Version 1.1 MIR (1.152
Mbps) and FIR (4 Mbps) Protocol
- Two DMA Channel for Transmitter
and Receiver
- 32-Byte FIFO is Supported in the
TX/RX Terminal
Share Link: 