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CD2481 数据表(PDF) 5 Page - Intel Corporation |
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CD2481 数据表(HTML) 5 Page - Intel Corporation |
5 / 222 page Datasheet 5 Programmable Four-Channel Communications Controller — CD2481 7.6.3 CRC Calculation in Bisync Mode ........................................................... 93 7.6.4 BCC Computation Formulas .................................................................. 94 7.6.5 Receive State Tables ............................................................................. 95 7.7 X.21 Call Set-Up Mode........................................................................................ 97 7.7.1 X.21 Transmit .........................................................................................97 7.7.2 X.21 Receive .......................................................................................... 97 7.8 Extended X.21 Mode........................................................................................... 99 7.8.1 Extended X.21 Transmit ......................................................................... 99 7.8.2 Extended X.21 Receive .......................................................................... 99 7.9 Programmable Sync.......................................................................................... 100 7.9.1 Programmable Sync Transmit.............................................................. 101 7.9.2 Programmable Sync Receive ............................................................... 101 7.10 Non-8-Bit Data Transfers .................................................................................. 102 8.0 Programming Examples......................................................................................103 8.1 Global Initialization ............................................................................................ 105 8.2 Async Interrupt Setup Example......................................................................... 107 8.3 HDLC DMA Channel Setup Example................................................................ 107 8.4 Receive DMA Interrupt Service Routine............................................................ 109 8.5 Transmit Interrupt Service Routine.................................................................... 110 8.6 Support Files from the Intel FTP Server............................................................ 110 9.0 Detailed Register Descriptions ........................................................................112 9.1 Global Registers................................................................................................ 112 9.1.1 Global Firmware Revision Code Register (GFRCR) ............................ 112 9.1.2 Channel Access Register (CAR) .......................................................... 112 9.2 Option Registers................................................................................................ 113 9.2.1 Channel Mode Register (CMR) ............................................................ 113 9.2.2 Channel Option Register 1 (COR1)...................................................... 114 9.2.3 Channel Option Register 2 (COR2)...................................................... 116 9.2.4 Channel Option Register 3 (COR3)...................................................... 123 9.2.5 Channel Option Register 4 (COR4)...................................................... 130 9.2.6 Channel Option Register 5 (COR5)...................................................... 131 9.2.7 Channel Option Register 6 (COR6)...................................................... 132 9.2.8 Channel Option Register 7 (COR7)...................................................... 135 9.2.9 Special Character Registers – Async and Programmable Sync Modes136 9.2.10 Special Character Range – Async Mode Only ..................................... 138 9.2.11 LNext Character (LNXT) – Async Mode Only ...................................... 139 9.2.12 Receive Frame Address Registers – HDLC Sync Mode Only ............. 139 9.2.13 CRC Polynomial Select Register (CPSR) ............................................ 141 9.2.14 Transmit Special Mapped Characters – PPP Mode only ..................... 141 9.2.15 Transmit Async Control Character Maps – Async-HDLC/PPP Mode Only142 9.2.16 Receive Async Control Character Maps – Async-HDLC/PPP Mode Only143 9.3 Bit Rate and Clock Option Registers................................................................. 145 9.3.1 Receive Baud Rate Generator Registers ............................................. 145 9.3.2 Transmit Baud Rate Generator Registers ............................................ 146 9.4 Channel Command and Status Registers ......................................................... 148 9.4.1 Channel Command Register (CCR) ..................................................... 148 |
类似零件编号 - CD2481 |
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类似说明 - CD2481 |
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