SCN26542C2A52

DESCRIPTION

The Philips Semiconductors SCN2651 PCI is a universal synchronous/asynchronous data communications controller chip designed for microcomputer systems. It interfaces directly to the Philips Semiconductors SCN2650 microprocessor and may be used in a polled or interrupt driven system environment. The SCN2651 accepts programmed instructions from the microprocessor and supports many serial data communication disciplines, synchronous and asynchronous, in the full or half-duplex mode.

FEATURES

• Synchronous operation
– 5- to 8-bit characters
– Single or double SYN operation
– Internal character synchronization
– Transparent or non-transparent mode
– Automatic SYN or DLE-SYN insertion
– SYN or DLE stripping
– Odd, even, or no parity
– Local or remote maintenance loopback mode
– Baud rate: DC to 1Mbps (1X clock)
• Asynchronous operation
– 5- to 8-bit characters
– 1, 1-1/2 or 2 stop bits
– Odd, even, or no parity
– Parity, overrun and framing error detection
– Line break detection and generation
– False start bit detection
– Automatic serial echo mode
– Local or remote maintenance loopback mode
– Baud rate: DC to 1Mbps
(1X clock)
DC to 62.5kbps (16X clock)
DC to 15.625kbps
(64X clock)

OTHER FEATURES

• Internal or external baud rate clock
• 16 internal rates – 50 to 19,200 baud
• Double buffered transmitter and receiver
• Full or half duplex operation
• TTL compatible inputs and outputs
• Single 5V power supply
• No system clock required
• 28-pin dual in-line package

APPLICATIONS

• Intelligent terminals
• Network processors
• Front-end processors
• Remote data concentrators
• Computer to computer links
• Serial peripherals