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EM3582-RTR 数据表(PDF) 49 Page - Silicon Laboratories |
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EM3582-RTR 数据表(HTML) 49 Page - Silicon Laboratories |
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49 / 59 page ![]() EM358x Rev 1.0 49 48 OSCA I/O 24 MHz crystal oscillator or external clock input. (An external clock input should only be used for test and debug purposes. If used in this manner, the external clock input should be a 1.8 V, 50% duty cycle, square wave.) 49 GND Ground Ground supply pad in the bottom center of the package forms Pin 49. See the various Ember EM358x Reference Design documentation for PCB con- siderations. Table 6.1. EM358x Pin Descriptions (Continued) Pin # Signal Direction Description Note: 1. IRQC and IRQD external interrupts can be mapped to any digital I/O pin using the GPIO_IRQCSEL and GPIO_IRQDSEL registers. |
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