SC68C562 Datasheet | NXP Semiconductors

INTEGRATED CIRCUITS SC68C562 CMOS dual universal serial munications controller (CDUSCC) Product specification Supersedes data of 1994 Apr 27 IC19 Data Handbook 1998 Sep 04 Philips Semiconductors Philips Semiconductors Product specification CMOS Dual universal serial munications controller (CDUSCC) DESCRIPTION The Philips Semiconductors SC68C562 Dual Universal Serial munications Controller (CDUSCC) is a single-chip CMOS-LSI munications device that provides two independent, multi-protocol, full-duplex receiver/transmitter channels in a single package. It supports bit-oriented and character-oriented (byte count and byte control) synchronous data link controls as well as asynchronous protocols. The SC68C562 interfaces to the 68000 MPUs via asynchronous bus control signals and is capable of program-polled, interrupt driven, block-move or DMA data transfers. The SC68C562 is hardware (pin) and software (Register) patible with SCN68562 (NMOS version). It will automatically configure to NMOS DUSCC register map on power-up or reset. The operating mode and data format of each channel can be programmed independently. Each channel consists of a receiver, a transmitter, a 16-bit multifunction counter/timer, a digital phase-locked loop (DPLL), a parity/CRC generator and checker, and associated control circuits. The two channels share a mon bit rate generator (BRG), operating directly from a crystal or an external clock, which provides 16 mon bit rates simultaneously. The operating rate for the receiver and transmitter of each channel can be independently selected from the BRG, the DPLL, the counter/timer, or from an external 1X or 16X clock. This makes the CDUSCC well suited for dual speed channel applications. Data rates up to 10Mb/s are supported. Each transmitter and each receiver is serviced by a 16 byte FIFO. The receiver FIFO also stores 9 status bits for each character received; the transmit FIFO is able to store transmitter mands...