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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AT43USB326 датащи(PDF) 19 Page - ATMEL Corporation |
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AT43USB326 датащи(HTML) 19 Page - ATMEL Corporation |
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19 / 102 page  19 AT43USB326 3313D–USB–04/06 The most typical and general program setup for the Reset and Interrupt Vector Addresses are: USB related interrupt events are routed to reset vectors 13 and 2 through a separate set of interrupt, interrupt enable and interrupt mask registers that are mapped to the data SRAM space. These interrupts must be enabled though their control register bits. In the event an interrupt is generated, the source of the interrupt is identified by reading the interrupt registers. The USB frame and transaction related interrupt events, such as Start of Frame interrupt, are grouped in one set of registers: USB Interrupt Flag Register, USB Interrupt Enable Register and USB Interrupt Mask Register. The USB Bus reset and suspend/resume are grouped in another set of registers: Suspend/Resume Register, Suspend/Resume Interrupt Enable Reg- ister and Suspend/Resume Interrupt Mask Register. Address Labels Code Comments $000 jmp RESET ; Reset Handler $002 jmp EXT_INT0 ; IRQ0 Handler $00E jmp TIM0_OVF ; Timer0 Overflow Handler $018 jmp USB_HW ; USB Handler ; $00d MAIN: ldi r16, high (RAMEND) ; Main Program start $00e out SPH, r16 $00f ldi r16, low (RAMEND) $010 out SPL, r16 $011 <instr> xxx ... ... ... ... |
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