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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AS7000 데이터시트(PDF) 76 Page - ams AG |
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AS7000 데이터시트(HTML) 76 Page - ams AG |
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76 / 92 page  Page 76 ams Datasheet Document Feedback [v1-12] 2018-Feb-26 AS7000 − Detailed Description GPIO, SWD and Security Registers Figure 97: GPIO_DATA Note(s): 1. The upper 4 bits are routed to the LED pins. This way the software can output data conveniently and quickly. The AFE module has to be turned ON and the LED have to be enabled for this to work. Figure 98: GPIO_OE Figure 99: GPIO_WMASK 0x00: GPIO_DATA Field Name Rst Type Description 12:0 gpio_d 0 R_PUSH Read/write pin data directly. A read always returns the value at the pin. (1) 0x04: GPIO_OE Field Name Rst Type Description 8:0 gpio_oe 0 R_PUSH Output enable (1=output 0=input) 0x08: GPIO_WMASK Field Name Rst Type Description 8:0 gpio_wmask 0x1ff RW All subsequent writes to GPIO_DATA and GPIO_OE will affect only those bits that are asserted in this mask register. This way a driver can set and clear bits with one access without affecting any other bits. This can be used for bit banging implementations of serial protocols. |
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