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WM8945 Datasheet(PDF) 92 Page - Wolfson Microelectronics plc |
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WM8945 Datasheet(HTML) 92 Page - Wolfson Microelectronics plc |
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92 / 169 page  WM8945 Production Data w PD, May 2011, Rev 4.1 92 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION 10 GP1_POL 0 GPIO1 Polarity Select 0 = Non-inverted 1 = Inverted 5 GP1_LVL 0 GPIO1 level. Write to this bit to set a GPIO output. Read from this bit to read GPIO input level. When GP1_POL is set, the register contains the opposite logic level to the external pin. 3:0 GP1_FN [3:0] 0000 GPIO1 Pin Function (see Table 63 for details) R13 (0Dh) GPIO2 Control 15 GP2_DIR 1 GPIO2 Pin Direction 0 = Output 1 = Input 14:13 GP2_PULL [1:0] 00 GPIO2 pull-up / pull-down Enable 00 = no pull-up or pull-down 01 = pull-down 10 = pull-up 11 = reserved 12 GP2_INT_ MODE 0 GPIO2 Interrupt Mode 0 = GPIO interrupt is rising edge triggered (if GP2_POL=0) or falling edge triggered (if GP2_POL =1) 1 = GPIO interrupt is triggered on rising and falling edges 10 GP2_POL 0 GPIO2 Polarity Select 0 = Non-inverted 1 = Inverted 5 GP2_LVL 0 GPIO2 level. Write to this bit to set a GPIO output. Read from this bit to read GPIO input level. When GP2_POL is set, the register contains the opposite logic level to the external pin. 3:0 GP2_FN [3:0] 0000 GPIO2 Pin Function (see Table 63 for details) R14 (0Eh) GPIO3 Control 15 GP3_DIR 1 GPIO3 Pin Direction 0 = Output 1 = Input 14:13 GP3_PULL [1:0] 10 GPIO3 pull-up / pull-down Enable 00 = no pull-up or pull-down 01 = pull-down 10 = pull-up 11 = reserved 12 GP3_INT_ MODE 0 GPIO3 Interrupt Mode 0 = GPIO interrupt is rising edge triggered (if GP3_POL=0) or falling edge triggered (if GP3_POL =1) 1 = GPIO interrupt is triggered on rising and falling edges 10 GP3_POL 0 GPIO3 Polarity Select 0 = Non-inverted 1 = Inverted |
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