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TMP93CS44 датащи(PDF) 123 Page - Toshiba Semiconductor |
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TMP93CS44 датащи(HTML) 123 Page - Toshiba Semiconductor |
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123 / 224 page ![]() TMP93CS44/S45 2004-02-10 93CS44-121 3.9 Serial Channel TMP93CS44/TMP93CS45 contains 2 serial I/O channels for full duplex asynchronous transmission (UART) as well as for I/O extension. The serial channel has the following operation modes. I/O interface mode Mode 0: To transmit and receive I/O data using the synchronizing signal SCLK for extending I/O. UART mode Mode 1: 7-bit data Mode 2: 8-bit data Mode 3: 9-bit data In mode 1 and mode 2, a parity bit can be added. Mode 3 has wakeup function for making the master controller start slave controllers in serial link (Multi-controller system). Figure 3.9.1 shows the data format (for one frame) in each mode. Serial channel 0 and 1 can be used independently. Figure 3.9.1 Data Formats (Channel 0 and 1) (Channel 0 and 1) Bit0 1 2 3 4 5 6 7 Bit0 1 2 3 4 5 6Stop Start Bit0 1 2 3 4 5 Parity Stop Start 6 Bit0 1 2 3 4 5 7 Stop Start Bit0 1 2 3 4 5 Parity Stop Start 7 6 6 Bit0 1 2 3 4 5 8 Stop Start Bit0 1 2 3 4 5 Stop (Wakeup) Start Bit8 6 6 7 7 Transfer direction • Mode 0 (I/O interface mode) • Mode 1 (7-bit UART mode) No parity Parity No parity Parity • Mode 2 (8-bit UART mode) • Mode 3 (9-bit UART mode) When bit8 = 1, address (Select code) is denoted. When bit8 = 0, data is denoted. |
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