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MPC823 Datasheet(PDF) 25 Page - Motorola, Inc |
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MPC823 Datasheet(HTML) 25 Page - Motorola, Inc |
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25 / 74 page ![]() Communication Processor Module MOTOROLA MPC823 REFERENCE MANUAL 16-403 RX—Receive Buffer This bit indicates that a buffer has been received and its associated RX buffer descriptor is now closed. It is set in the middle of the last stop bit of the last character that is written to the receive buffer. Figure 16-117. SMCx UART Interrupt Example LINE IDLE 10 CHARACTERS CHARACTERS RECEIVED BY SMC UART TIME RXD LINE IDLE LINE IDLE 7 CHARACTERS LINE IDLE TXD RX RX TX BREAK BRK NOTES: 1. The first RX event assumes receive buffers are six bytes each. 2. The second RX event position is programmable based on the max_IDL value. 3. The BRK event occurs after the first break character is received. NOTE: The TX event assumes all seven characters were put into a single buffer, and the TX event occurred when the seventh character was written to the SMC transmit FIFO. SMC UART SMCE EVENTS CHARACTERS TRANSMITTED BY SMC UART SMC UART SMCE EVENTS BRKE |
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