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TOIM3000 Datasheet(PDF) 2 Page - TEMIC Semiconductors |
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TOIM3000 Datasheet(HTML) 2 Page - TEMIC Semiconductors |
2 / 9 page TOIM3000/3232 TELEFUNKEN Semiconductors Rev. A4, 26-Mar-96 Preliminary Information 2 (9) Pin Description TOIM3000 Pin Symbol Function I/Q Active 1 RESET Resets all internal registers. Initially must be HIGH to reset internal regis- ters. When LOW, the TOIM3000 connects the UART with IrDA trans- ceiver. Data received from the UART transmits out through the infrared transmitter. Data received from the infrared receiver is routed to the UART. When HIGH, the TOIM3000 connects the UART with the RS232 port. Data received from the UART transmits out through the RS232 port, while data received from the RS232 port is routed to the UART. Minimum hold time for reset is 1 ms. I 2 RD_UART Received data to the UART O LOW 3 TD_UART Data fom the UART to be transmitted I LOW 4 B_CLK 16 times baud rate clock, input from the UART (Baudout) I 5 XIN Oscillator input, 1.8432 MHz clock (to be connected to Xout pin of the UART) I 6 NC No connection 7 NC No connection 8 GND Ground in common with the UART and RS232 port 9 S0 Must be connected to GND 10 S1 Must be connected to GND for output pulse length of 1.627 ms, Connected to VCC for pulse length of 3/16 of bit *) 11 RD_232 Data input from the RS232 port, RXD pin I LOW 12 TD_232 Data output to the RS232 port, TXD pin O LOW 13 NC No connection 14 TD_IR Data output to infrared transmitter TFDS3000 O HIGH 15 RD_IR Data receive input from the infrared transmitter TFDS3000 I LOW 16 VCC Supply voltage *) The use of a pulse length of 3/16 of bit duration is not recommended when both clocks, Xout and Baudout, of the UART are available |
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