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SLG46532 Folha de dados(PDF) 61 Page - Dialog Semiconductor

Nome de Peças SLG46532
Descrição Electrónicos  GreenPAK Programmable Mixed-signal Matrix with Asynchronous State Machine and Dual Supply
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SLG46532
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,(Pin8 Digital or I2C_virtual_0 Input) and (Pin9
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 PIN8
• reg <1082> Select SDA & Virtual Input 1 or PIN9
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>


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