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SCC68692 Dataheets PDF



Part Number SCC68692
Manufacturers Philips
Logo Philips
Description Dual asynchronous receiver/transmitter DUART
Datasheet SCC68692 DatasheetSCC68692 Datasheet (PDF)

INTEGRATED CIRCUITS SCC68692 Dual asynchronous receiver/transmitter (DUART) Product specification Supersedes data of 1995 May 01 IC19 Data Handbook 1998 Sep 04 Philips Semiconductors Philips Semiconductors Product specification Dual asynchronous receiver/transmitter (DUART) SCC68692 DESCRIPTION The Philips Semiconductors SCC68692 Dual Universal Asynchronous Receiver/Transmitter (DUART) is compatible with SCN68681. It is a single-chip CMOS-LSI communications device that provides two full-d.

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INTEGRATED CIRCUITS SCC68692 Dual asynchronous receiver/transmitter (DUART) Product specification Supersedes data of 1995 May 01 IC19 Data Handbook 1998 Sep 04 Philips Semiconductors Philips Semiconductors Product specification Dual asynchronous receiver/transmitter (DUART) SCC68692 DESCRIPTION The Philips Semiconductors SCC68692 Dual Universal Asynchronous Receiver/Transmitter (DUART) is compatible with SCN68681. It is a single-chip CMOS-LSI communications device that provides two full-duplex asynchronous receiver/transmitter channels in a single package. It is compatible with other S68000 family devices and can also interface easily with other microprocessors. The DUART can be used in a polled or interrupt driven systems. The operating mode and data format of each channel can be programmed independently. Additionally, each receiver and transmitter can select its operating speed as one of eighteen fixed baud rates, a 16X clock derived from a programmable counter/timer, or an external 1X or 16X clock. The baud rate generator and counter/timer can operate directly from a crystal or from external clock inputs. The ability to independently program the operating speed of the receiver and transmitter make the DUART particularly attractive for dual-speed channel applications such as clustered terminal systems. Each receiver is quadruple buffered to minimize the potential of receiver over-run or to reduce interrupt overhead in interrupt driven systems. In addition, a flow control capability is provided to disable a remote DUART transmitter when the receiver buffer is full. Also provided on the SCC68692 are a multipurpose 6-bit input port and a multipurpose 8-bit output port. These can be used as general purpose I/O ports or can be assigned specific functions (such as clock inputs or status/interrupt outputs) under program control. – Non-standard user-defined rate derived from programmable counter/timer – External 1X or 16X clock • Parity, framing, and overrun error detection • False start bit detection • Line break detection and generation • Programmable channel mode – Normal (full-duplex) – Automatic echo – Local loopback – Remote loopback – Multidrop mode (also called ‘wake-up’ or ‘9-bit’) • Multi-function 6-bit input port – Can serve as clock or control inputs – Change of state detection on four inputs – Inputs have typically >100k pull-up resistors • Multi-function 8-bit output port – Individual bit set/reset capability • Versatile interrupt system – Outputs can be programmed to be status/interrupt signals – Single interrupt output with eight maskable interrupting conditions – Interrupt vector output on interrupt acknowledge – Output port can be configured to provide a total of up to six separate wire-ORable interrupt outputs FEATURES • S68000 bus compatible • Dual full-duplex asynchronous receiver/transmitters • Quadruple buffered receiver data register • Programmable data format: – 5 to 8 data bits plus parity – Odd, even, no parity or force parity – 1, 1.5 or 2 stop bits programmable in 1/16-bit increments • 16-bit programmable Counter/Timer • Programmable baud rate for each receiver and transmitter selectable from: – 22 fixed rates: 50 to 115.2k baud – Non-standard rates to 115.2kb • Maximum data transfer rates: 1X – 1MB/sec, 16X – 125kB/sec • Automatic wake-up mode for multidrop applications • Start-end break interrupt/status • Detects break which originates in the middle of a character • On-chip crystal oscillator • Power down mode • Receiver timeout mode • Commercial and Industrial temperature range versions • TTL compatible • Single +5V power supply ORDERING INFORMATION COMMERCIAL DESCRIPTION 40-Pin (600 mils wide) Ceramic Dual In-Line Package (Cerdip) 40-Pin (600 mils wide) Plastic Dual In-Line Package (DIP) 44-Pin Plastic Leaded Chip Carrier (PLCC) VCC = +5V +10%, TA = 0 to +70°C SCC68692C1F40 SCC68692C1N40 SCC68692C1A44 INDUSTRIAL VCC = +5V +10%, TA = -40 to +85°C SCC68692E1F40 SCC68692E1N40 SCC68692E1A44 DWG # 0590B SOT129-1 SOT187-2 1998 Sep 04 2 853–0977 19971 Philips Semiconductors Product specification Dual asynchronous receiver/transmitter (DUART) SCC68692 PIN CONFIGURATIONS INDEX CORNER A1 IP3 A2 IP1 A3 A4 IP0 R/WN 1 2 3 4 5 6 7 8 40 VCC 39 IP4 38 IP5 PLCC 37 IACKN 36 IP2 35 CSN 34 RESETN 33 X2 32 X1/CLK DIP 31 RxDA 30 TxDA 29 OP0 28 OP2 27 OP4 26 OP6 25 D0 24 D2 23 D4 22 D6 21 INTRN 17 18 TOP VIEW PIN/FUNCTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 NC A1 IP3 A2 IP1 A3 A4 IP0 R/WN DTACKN RxDB NC TxDB OP1 OP3 OP5 OP7 D1 D3 D5 D7 GND PIN/FUNCTION 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 NC INTRN D6 D4 D2 D0 OP6 OP4 OP2 OP0 TxDA NC RxDA X1/CLK X2 RESETN CSN IP2 IACKN IP5 IP4 VCC 28 29 7 6 1 40 39 DTACKN 9 RxDB 10 TxDB 11 OP1 12 OP3 13 OP5 14 OP7 15 D1 16 D3 17 D5 18 D7 19 GND 20 SD00144 Figure 1. Pin Configurations ABSOLUTE MAXIMUM RATINGS1 SYMBOL TA2 TSTG VCC3 VS 3 PARAMETER Operating ambient temperature range Storage .


XR-320 SCC68692 SCC68681


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