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ALC5642R-VF-CG 数据表(PDF) 54 Page - Realtek Semiconductor Corp. |
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ALC5642R-VF-CG 数据表(HTML) 54 Page - Realtek Semiconductor Corp. |
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54 / 156 page  ALC5642-VF Datasheet Multi-Channel Audio Hub/CODEC with embedded Voice DSP and SounzReal TM Digital Sound Effect 42 Rev. 0.93 7.16. GPIO, Interrupt and Jack Detection The ALC5642 supports two GPIOs – GPIO1/GPIO2. These two GPIOs are multi-function pins. GPIO1 can be configured to GPIO or IRQ output by MX-C0[15]. GPIO2 can be configured to GPIO or DMIC clock output by MX-C0[14]. These two GPIOs can also be configured to jack detection pins. For jack detection purpose, it needs switch GPIO to input pin. Basically, ALC5642 has dedicated jack detection pins – JD1 and JD2. The JD1 and JD2 share pins with IN1N and IN2N. For GPIO function, the GPIO can be configured to input or output. For input type, the internal circuit can read pin status and report to register table. For output type, the internal circuit can drive this pin to high or low to control external device. In GPIO function, the pin polarity can be controlled by register at output type. GPIO1 MX-C2[1] EN_OBUF EN_IBUF MX-C2[2] High Low MX-C2[0] MX-BF[8] GPIO2 MX-C2[4] EN_OBUF EN_IBUF MX-C2[5] High Low MX-C2[3] MX-BF[7] Figure 24. GPIO Function Block |
类似零件编号 - ALC5642R-VF-CG |
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类似说明 - ALC5642R-VF-CG |
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