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MC68340FE16 Datasheet(PDF) 5 Page - Freescale Semiconductor, Inc |
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MC68340FE16 Datasheet(HTML) 5 Page - Freescale Semiconductor, Inc |
5 / 441 page 11/2/95 SECTION 1: OVERVIEW UM Rev.1.0 iv MC68340 USER'S MANUAL MOTOROLA TABLE OF CONTENTS (Continued) Paragraph Page Number Title Number 2.7 Bus Control Signals .........................................................................................2-6 2.7.1 Data and Size Acknowledge ( DSACK1, DSACK0)................................2-6 2.7.2 Address Strobe ( AS)....................................................................................2-6 2.7.3 Data Strobe ( DS)...........................................................................................2-7 2.7.4 Transfer Size (SIZ1, SIZ0) ..........................................................................2-7 2.7.5 Read/Write (R/ W)...........................................................................................2-7 2.8 Bus Arbitration Signals....................................................................................2-7 2.8.1 Bus Request ( BR)..........................................................................................2-7 2.8.2 Bus Grant ( BG)...............................................................................................2-7 2.8.3 Bus Grant Acknowledge ( BGACK).............................................................2-7 2.8.4 Read-Modify-Write Cycle ( RMC).................................................................2-8 2.9 Exception Control Signals ..............................................................................2-8 2.9.1 Reset ( RESET)...............................................................................................2-8 2.9.2 Halt ( HALT)....................................................................................................2-8 2.9.3 Bus Error ( BERR)...........................................................................................2-8 2.10 Clock Signals ....................................................................................................2-8 2.10.1 System Clock (CLKOUT)............................................................................2-8 2.10.2 Crystal Oscillator (EXTAL, XTAL)...............................................................2-9 2.10.3 External Filter Capacitor (XFC) ..................................................................2-9 2.10.4 Clock Mode Select (MODCK).....................................................................2-9 2.11 Instrumentation and Emulation Signals .......................................................2-9 2.11.1 Instruction Fetch ( IFETCH)..........................................................................2-9 2.11.2 Instruction Pipe ( IPIPE)...............................................................................2-9 2.11.3 Breakpoint ( BKPT)........................................................................................2-10 2.11.4 Freeze (FREEZE)..........................................................................................2-10 2.12 DMA Module Signals.......................................................................................2-10 2.12.1 DMA Request ( DREQ2, DREQ1).................................................................2-10 2.12.2 DMA Acknowledge ( DACK2, DACK1)......................................................2-10 2.12.3 DMA Done ( DONE2, DONE1)......................................................................2-10 2.13 Serial Module Signals.....................................................................................2-11 2.13.1 Serial Crystal Oscillator (X2, X1) ...............................................................2-11 2.13.2 Serial External Clock Input (SCLK)...........................................................2-11 2.13.3 Receive Data (RxDA, RxDB).......................................................................2-11 2.13.4 Transmit Data (TxDA, TxDB).......................................................................2-11 2.13.5 Clear to Send ( CTSA, CTSB).....................................................................2-11 2.13.6 Request to Send ( RTSA, RTSB)................................................................2-11 2.13.7 Transmitter Ready ( T ≈RDYA).....................................................................2-11 2.13.8 Receiver Ready ( R ≈RDYA) .........................................................................2-12 2.14 Timer Signals ....................................................................................................2-12 2.14.1 Timer Gate ( TGATE2, TGATE1)................................................................2-12 2.14.2 Timer Input (TIN2, TIN1) ..............................................................................2-12 2.14.3 Timer Output (TOUT2, TOUT1)...................................................................2-12 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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