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TSS463B датащи(PDF) 4 Page - ATMEL Corporation |
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TSS463B датащи(HTML) 4 Page - ATMEL Corporation |
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4 / 59 page ![]() 4 TSS463B 4102E–AUTO–12/04 Application The TSS463B is a microprocessor controlled line controller for the VAN bus. It can inter- face to virtually any microprocessor that includes SPI or SCI interface. • The TSS463B provides one full Motorola© compatible SPI interface. • It includes one full compatible Intel® UART (mode 0 only). • One 9-bits SCI interface is also integrated. The circuit also features a single interrupt pin. This pin can be treated as level sensitive, i.e. if there is a pending interrupt inside the circuit when another interrupt is reset the INT pin will emit a high pulse with the same pulse width as the internal write strobe (typically 20 ns). Figure 1. Typical Application With Motorola SPI Mode Notes: 1. The TSS463B RESET pin can be either connected to GND through a 1 µF capacitor, or the µC RESET pin or unconnected (inactive with internal pull-up). 2. Leaving MISO output pin floating in high impedance mode slightly increases standby consumption. A 100K Ω pullup/pulldown resistor is recommended. TEST/VSS TxD mC CKOUT IRQ PORT X.Y MISO XTAL1 INT SS RESET (1) MISO(2) 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 SCLK MOSI RxD0 RxD1 RxD2 RESET (1) VDD GND XTAL2 VAN Bus General I/O Remaining pins SCLK (if needed) 100K MOSI CKOUT |
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