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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST92163 датащи(PDF) 137 Page - STMicroelectronics |
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ST92163 датащи(HTML) 137 Page - STMicroelectronics |
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137 / 224 page  137/224 ST92163 - USB PERIPHERAL (USB) Figure 70. DMA buffers and related register file locations 8.3.3.3 Interrupt modes Two interrupt modes are available: single vector, where the application software has to poll the USB registers to determine which event required its at- tention, and multi-vector, where a specific interrupt vector is used for each endpoint. Special support is offered to isochronous transfers, implementing a swapped DMA buffer usage. 8.3.3.4 Suspend mode The unit can be placed in low-power mode (SUS- PEND mode), by writing in a control register. At this time, all static power dissipation is avoided, except for the generation of the 3.3V supply for the external pull-up resistor. The detection of activity at the USB inputs while in low-power mode wakes the device up asynchronously. A special interrupt source, ESUSP, is connected directly to a wake- up line so as to allow the ST9 to exit from HALT condition. ADDR0_TH ADDR0_TL R0 COUNT0_TH COUNT0_TL ADDR0_RH ADDR0_RL COUNT0_RH COUNT0_RL ADDR1_TH ADDR1_TL COUNT1_TH COUNT1_TL ADDR1_RH ADDR1_RL COUNT1_RH COUNT1_RL R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 ADDR2_TH ADDR2_TL R16 R17 REGISTER FILE LOCATIONS TRANSMISSION BUFFER FOR ENDPOINT 0 RECEPTION BUFFER FOR ENDPOINT 0 TRANSMISSION BUFFER FOR ENDPOINT 1 MEMORY AREA Register File |
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