Realtek Ameba-D RTL872 D Series User Manual page 8

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13.2.3 I C Behavior ................................................................................................................................................................ 247
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13.2.4 I C Protocols................................................................................................................................................................ 248
13.2.5 Tx FIFO Management and START, STOP and RESTART Generation ............................................................................ 252
13.2.6 Multiple Master Arbitration ....................................................................................................................................... 254
13.2.7 Clock Synchronization ................................................................................................................................................. 255
13.2.8 Operation Modes ........................................................................................................................................................ 255
13.2.9 IC_CLK Frequency Configuration................................................................................................................................. 257
13.2.10 Programmable SDA Hold Time ................................................................................................................................ 259
13.2.11 DMA Controller Interface ........................................................................................................................................ 259
13.2.12 Low Power Mode .................................................................................................................................................... 260
13.3 Registers ......................................................................................................................................................................... 261
13.3.1 Register Memory Map ................................................................................................................................................ 261
13.3.2 Registers and Field Descriptions ................................................................................................................................. 262
14 Universal Asynchronous Receiver/Transmitter (UART) ................................................................................................. 284
14.1 Introduction ................................................................................................................................................................... 284
14.1.1 Features ...................................................................................................................................................................... 284
14.1.2 Block Diagram ............................................................................................................................................................ 284
14.2 Register .......................................................................................................................................................................... 285
14.2.1 IER ............................................................................................................................................................................... 286
14.2.2 IIR ................................................................................................................................................................................ 286
14.2.3 LCR .............................................................................................................................................................................. 287
14.2.4 MCR ............................................................................................................................................................................ 288
14.2.5 LSR .............................................................................................................................................................................. 289
14.2.6 MSR ............................................................................................................................................................................ 289
14.2.7 SCR .............................................................................................................................................................................. 290
14.2.8 STSR ............................................................................................................................................................................ 291
14.2.9 RBR ............................................................................................................................................................................. 291
14.2.10 THR .......................................................................................................................................................................... 291
14.2.11 MISCR ...................................................................................................................................................................... 292
14.2.12 IRDA_SIR_TX_PW_CTRL .......................................................................................................................................... 293
14.2.13 IRDA_SIR_RX_PW_CTRL .......................................................................................................................................... 293
14.2.14 BAUD_MON ............................................................................................................................................................ 293
14.2.15 DBG_UART .............................................................................................................................................................. 294
14.2.16 REG_RX_PATH_CTRL ............................................................................................................................................... 294
14.2.17 REG_MON_BAUD_CTRL .......................................................................................................................................... 295
14.2.18 REG_MON_BAUD_STS ............................................................................................................................................ 295
14.2.19 REG_MON_CYC_NUM............................................................................................................................................. 295
14.2.20 REG_RX_BYTE_CNT ................................................................................................................................................. 296
14.2.21 FCR .......................................................................................................................................................................... 296
14.3 Design Implementation .................................................................................................................................................. 297
14.3.1 Baud Rate Calculation ................................................................................................................................................ 297
14.3.2 Clock Structure of Rx Path .......................................................................................................................................... 298
14.3.3 Irda_sir_encoder/decoder .......................................................................................................................................... 299
14.3.4 Auto-flow Control ....................................................................................................................................................... 300
14.3.5 Interrupt Control ......................................................................................................................................................... 300
14.3.6 DMA Flow Control ...................................................................................................................................................... 301
15 Infrared Radiation (IR) ................................................................................................................................................... 302
15.1 Overall Description ........................................................................................................................................................ 302
15.1.1 Introduction ................................................................................................................................................................ 302
15.1.2 Features ...................................................................................................................................................................... 303
15.2 Architecture ................................................................................................................................................................... 303
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Ameba-D User Manual
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