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TMP19A43CD Datasheet(PDF) 8 Page - Toshiba Semiconductor |
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TMP19A43CD Datasheet(HTML) 8 Page - Toshiba Semiconductor |
8 / 523 page TMP19A43 2.3 Pin Names and Functions Table 2-2 through Table 2-7 show the names and functions of input and output pins. Table 2-2 Pin Names and Functions (1 of 6) Pin name Number of pins Input or output Function P00-P07 8 Input/output Port 0: Input/output port (with pull-up) that allows input/output to be set in units of bits D0-D7 Input/output Data (lower): Data bus 0 to 7 (separate bus mode) AD0-D7 Input/output Address data (lower): Address data bus 0 to 7 (multiplexed bus mode) P10-P17 8 Input/output Port 1: Input/output port (with pull-up) that allows input/output to be set in units of bits D8-D15 Input/output Data (upper): Data bus 8 to 15 (separate bus mode) AD8-AD15 Input/output Address data (upper): Address data bus 8 to 15 (multiplexed bus mode) A8-A15 Output Address: Address bus 8 to 15 (multiplexed bus mode) P20-P27 8 Input/output Port 2: Input/output port (with pull-up) that allows input/output to be set in units of bits A16-A23 Output Address: Address bus 15 to 23 (separate bus mode) A0-A7 Output Address: Address bus 0 to 7 (multiplexed bus mode) TB0IN0,TB0IN1 Input 16-bit timer 0 input 0,1: For inputting the count/capture trigger of a 16-bit timer 0 TB1IN0,TB1IN1 Input 16-bit timer 1 input 0,1: For inputting the count/capture trigger of a 16-bit timer 1 TB4IN0,TB4IN1 Input 16-bit timer 4 input 0,1: For inputting the count/capture trigger of a 16-bit timer 4 TB5IN0,TB5IN1 Input 16-bit timer 5 input 0,1: For inputting the count/capture trigger of a 16-bit timer 5 P30 1 Output Port 30: Port used exclusively for output RD Output Read: Strobe signal for reading external memory P31 1 Output Port 31: Port used exclusively for output WR Output Write: Strobe signal for writing data of D0 to D7 pins P32 1 Input/output Port 32: Input/output port (with pull-up) HWR Output Write upper-pin data: Strobe signal for writing data of D8 to D15 pins TC0IN Input For inputting the capture trigger for 32-bit timer P33 1 Input/output Port 33: Input/output port (with pull-up) WAIT Input Wait: Pin for requesting CPU to put a bus in a wait state RDY Input Ready: Pin for notifying CPU that a bus is ready P34 1 Input/output Port 34: Input/output port (with pull-up) BUSRQ Input Bus request: Signal requesting CPU to allow an external master to take the bus control authority TBEOUT Output 16-bit timer E output: Pin for outputting 16-bit timer E P35 1 Input/output Port 35: Input/output port (with pull-up) BUSAK Output Bus acknowledge: Signal notifying that CPU has released the bus control authority in response to BUSRQ TC1IN Input For inputting the capture trigger for 32-bit timer P36 1 Input/output Port 36: Input/output port (with pull-up) W / R Output Read/write: "1" shows a read cycle or a dummy cycle. "0" shows a write cycle. TC2IN Input For inputting the capture trigger for 32-bit timer P37 1 Input/output Port 37: Input/output port (with pull-up) ALE Output Address latch enable (address latch is enabled only if access to external memory is taking place) TC3IN Input For inputting the capture trigger for 32-bit timer P40 1 Input/output Port 40: Input/output port (with pull-up) CS0 Output Chip select 0: "0" is output if the address is in a designated address area. KEY24 Input KEY on wake up input 24: (Dynamic pull up is selectable) Input with Schmitt trigger with Noise filter P41 1 Input/output Port 41: Input/output port (with pull-up) CS1 Output Chip select 1: "0" is output if the address is in a designated address area. KEY25 Input KEY on wake up input 25: (Dynamic pull up is selectable) Input with Schmitt trigger with Noise filter P42 1 Input/output Port 42: Input/output port (with pull-up) CS2 Output Chip select 2: "0" is output if the address is in a designated address area. KEY26 Input KEY on wake up input 26: (Dynamic pull up is selectable) Input with Schmitt trigger with Noise filter TMP19A43 (rev2.0) 2-3 Pin Layout and Pin Functions |
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