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MC68340 データシート(PDF) 14 Page - Freescale Semiconductor, Inc |
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MC68340 データシート(HTML) 14 Page - Freescale Semiconductor, Inc |
14 / 441 page 11/2/95 SECTION 1: OVERVIEW UM Rev 1 MOTOROLA MC68340 USER'S MANUAL xiii TABLE OF CONTENTS (Continued) Paragraph Page Number Title Number 7.1.5 Comparison of Serial Module to MC68681 .............................................7-4 7.2 Serial Module Signal Definitions...................................................................7-4 7.2.1 Crystal Input or External Clock (X1) ..........................................................7-5 7.2.2 Crystal Output (X2) .......................................................................................7-5 7.2.3 External Input (SCLK)..................................................................................7-6 7.2.4 Channel A Transmitter Serial Data Output (TxDA).................................7-6 7.2.5 Channel A Receiver Serial Data Input (RxDA)........................................7-6 7.2.6 Channel B Transmitter Serial Data Output (TxDB).................................7-6 7.2.7 Channel B Receiver Serial Data Input (RxDB)........................................7-6 7.2.8 Channel A Request-To-Send ( RTSA) ......................................................7-6 7.2.8.1 RTSA...........................................................................................................7-6 7.2.8.2 OP0..............................................................................................................7-6 7.2.9 Channel B Request-To-Send ( RTSB).......................................................7-6 7.2.9.1 RTSB...........................................................................................................7-7 7.2.9.2 OP1..............................................................................................................7-7 7.2.10 Channel A Clear-To-Send ( CTSA) ...........................................................7-7 7.2.11 Channel B Clear-To-Send ( CTSB)............................................................7-7 7.2.12 Channel A Transmitter Ready ( T ≈RDYA).................................................7-7 7.2.12.1 T ≈RDYA......................................................................................................7-7 7.2.12.2 OP6..............................................................................................................7-7 7.2.13 Channel A Receiver Ready ( R ≈RDYA).....................................................7-7 7.2.13.1 R ≈RDYA......................................................................................................7-7 7.2.13.2 FFULLA.......................................................................................................7-7 7.2.13.3 OP4..............................................................................................................7-7 7.3 Operation............................................................................................................7-8 7.3.1 Baud Rate Generator ...................................................................................7-8 7.3.2 Transmitter and Receiver Operating Modes ............................................7-8 7.3.2.1 Transmitter .................................................................................................7-10 7.3.2.2 Receiver......................................................................................................7-11 7.3.2.3 FIFO Stack..................................................................................................7-12 7.3.3 Looping Modes .............................................................................................7-14 7.3.3.1 Automatic Echo Mode..............................................................................7-14 7.3.3.2 Local Loopback Mode .............................................................................7-14 7.3.3.3 Remote Loopback Mode .........................................................................7-14 7.3.4 Multidrop Mode .............................................................................................7-15 7.3.5 Bus Operation................................................................................................7-17 7.3.5.1 Read Cycles...............................................................................................7-17 7.3.5.2 Write Cycles...............................................................................................7-17 7.3.5.3 Interrupt Acknowledge Cycles................................................................7-17 7.4 Register Description and Programming .......................................................7-17 7.4.1 Register Description.....................................................................................7-17 7.4.1.1 Module Configuration Register (MCR)..................................................7-19 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
同様の部品番号 - MC68340 |
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同様の説明 - MC68340 |
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