Quad UART features four 256-byte FIFOs.
Press Release Summary:
Offering data rates up to 5.3 Mbps, Model SB16C1054 includes GICR/GISR functions to minimize interrupt signal control logic and FUR/FLR functions, which store Receive FIFO threshold levels to start or stop transmission during hardware and software flow control. On-chip status registers indicate transmission conditions and error-related information. Programmable for various interrupt trigger levels, UART supports RS-422 automatic multi-drop mode and RS-485 echo/non-echo mode.
Original Press Release:
Worlds-First Quad UART Has 256-byte FIFO
Pittsford, NY: SB16C1054 is a new Quad UART(Universal Asynchrous Receiver/Transmitter) with four 256-byte FIFOs, automatic hardware/software flow control, and data rates up to 5.3 Mbps. SB16C1054's world's-largest 256-byte FIFOs reduce CPU overhead and allow higher data rates and data throughput.
In addition to increased FIFO size and data rates, SB16C1054 also offers enhanced features. SB16C1054 has a GICR(Global Interrupt Control Register)/GISR(Global Interrupt Status Register) which reduces interrupt signal control logic. Also featured is an FUR(Flow control Upper Threshold Register)/FLR(Flow control Lower Threshold Register) which stores Receive FIFO threshold levels to start or stop transmission during hardware and software flow control. For system clocks up to 85 MHz, SB16C1054 allows Xoff re-transmit function as well as Xon any character function for flow control operation. On-chip status registers indicate transmission conditions and all error-related information (parity, overrun, framing or break interrupt). An internal loop-back capability allows helpful on-board diagnostics, which can potentially reduce service issues.
SB16C1054 can be programmed for various interrupt trigger levels and has the same register set as the industry-standard 16C554 and 16C654 for the convenience. RS-422 automatic multi-drop mode and RS-485 echo/non-echo mode are supported. SB16C1054's sleep function can be enabled for low power consumption. SB16C1054 is pin-compatible with the commonly-used 16C554. With 5V-tolerant inputs, SB16C1054 normally operates at 3.3V.
Designed by SystemBase (Korea) and recently announced in Shanghai at IIC-CHINA 2006 (the largest system design event in China), SB16C1054 is available now from Saelig Co. Inc. in plastic TQFP80 and PLCC68 packages from stock at <$12.00 each (10K). www.saelig.com info@saelig.com 1-888-7SAELIG
