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WM8946ECS/R Datasheet(PDF) 91 Page - Wolfson Microelectronics plc |
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WM8946ECS/R Datasheet(HTML) 91 Page - Wolfson Microelectronics plc |
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91 / 175 page  Production Data WM8946 w PD, July 2012, Rev 4.3 91 REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION R11 (0Bh) GPIO Config 0 GPIO_MODE 0 CIFMODE/GPIO3 pin configuration 0 = Pin configured as CIFMODE 1 = Pin configured as GPIO3 Note – when this bit is set to 1, it is latched and cannot be reset until Power-Off or Software Reset. R12 (0Ch) GPIO1 Control 15 GP1_DIR 1 GPIO1 Pin Direction 0 = Output 1 = Input 14:13 GP1_PULL [1:0] 00 GPIO1 pull-up / pull-down Enable 00 = no pull-up or pull-down 01 = pull-down 10 = pull-up 11 = reserved 12 GP1_INT_MOD E 0 GPIO1 Interrupt Mode 0 = GPIO interrupt is rising edge triggered (if GP1_POL=0) or falling edge triggered (if GP1_POL =1) 1 = GPIO interrupt is triggered on rising and falling edges 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 60 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_MOD E 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 60 for details) |
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