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SLG46534 датащи(PDF) 44 Page - Dialog Semiconductor |
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SLG46534 датащи(HTML) 44 Page - Dialog Semiconductor |
44 / 172 page SLG46534_DS_107 Page 43 of 171 SLG46534 8.3 Connection Matrix Virtual Inputs As mentioned previously, the Connection Matrix inputs come from the outputs of various digital macrocells on the device. Eight of the Connection Matrix inputs have the special characteristic that the state of these signal lines comes from a corresponding data bit written as a register value via I2C. This gives the user the ability to write data via the serial channel, and have this information translated into signals that can be driven into the Connection Matrix and from the Connection Matrix to the digital inputs of other macrocells on the device. The I2C address for reading and writing these register values is at byte 0244. Six of the eight Connection Matrix Virtual Inputs are dedicated to this virtual input function. An I2C write command to these register bits will set the signal values going into the Connection Matrix to the desired state. A read command to these register bits will read either the original data values coming from the NVM memory bits (that were loaded during the initial device startup), or the values from a previous write command (if that has happened). Two of the eight Connection Matrix Virtual Inputs are shared with Pin digital inputs,(Pin6 Digital or I2C_virtual_0 Input) and (Pin7 Digital or I2C_virtual_1 Input). If the virtual input mode is selected, an I2C write command to these register bits will set the signal values going into the Connection Matrix to the desired state. A read command to these register bits will read either the original data values coming from the NVM memory bits (that were loaded during the initial device startup), or the values from a previous write command (if that has happened). Two register bits select whether the Connection Matrix input comes from the pin input or from the virtual register: • reg <1074> Select SCL & Virtual Input 0 or PIN6 • reg <1082> Select SDA & Virtual Input 1 or PIN7 See table below for Connection Matrix Virtual Inputs. 8.4 Connection Matrix Virtual Outputs The digital outputs of the various macrocells are routed to the Connection Matrix to enable interconnections to the inputs of other macrocells in the device. At the same time, it is possible to read the state of each of the macrocell outputs as a register value via I2C. This option, called Connection Matrix Virtual Outputs, allows the user to remotely read the values of each macrocell output. The I2C addresses for reading these register values are at bytes 0240 to 0247. Write commands to these same register values will be ignored (with the exception of the Virtual Input register bits at byte 0244). Matrix Input Number Matrix Input Signal Function Register Bit Addresses (d) 32 I2C_virtual_0 Input reg<1952> 33 I2C_virtual_1 Input reg<1953> 34 I2C_virtual_2 Input reg<1954> 35 I2C_virtual_3 Input reg<1955> 36 I2C_virtual_4 Input reg<1956> 37 I2C_virtual_5 Input reg<1957> 38 I2C_virtual_6 Input reg<1958> 39 I2C_virtual_7 Input reg<1959> |
Аналогичный номер детали - SLG46534 |
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Аналогичное описание - SLG46534 |
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