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MCS9845
The MCS9845 is a PCI based dual-channel high performance UART with external I/O interface. The MCS9845 offers standard 16C550 compatible dual UART. In addition, MCS9845 supports the existing ISA style interface to add additional external functions like UARTS or printer ports.
The MCS9845 is ideally suited for PC applications, such as high speed COM ports and parallel ports. The MCS9845 is available in a 128-pin QFP package. It is fabricated using an advanced submicron CMOS process to achieve low drain power and high speed requirements.
Features
- Single 5V operation
- Low power
- PCI compatible dual UART
- 32-byte transmit-receive FIFO (UART)
- Selectable receive trigger levels
- Programmable baud rate generator
- Modem control signals
- 5, 6, 7, 8-bit characters selection
- Even, odd, no parity, or force parity generations
- Status report capability
- Compatible with 16C550
- On-chip oscillator
- Re-map function for legacy ports
- ISA style I/O interface
- 3 address lines
- 4 active high interrupts
- 1 active low interrupt
- 4 external chip selects
- 128-pin QFP package (RoHS)
Applications
- I/O bridge
- Portable backup units
- Embedded applications
- High speed modems
- Monitoring equipment
- Add-on I/O cards
- Serial networking
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