SCPS311 March 2026
ADVANCE INFORMATION
- 1
- 1 Features
- 2 Applications
- 3 Description
- 4 Pin Configuration and Functions
- 5 Specifications
- 6 Parameter Measurement Information
- 7 Detailed Description
- 8 Application and Implementation
- 9 Device and Documentation Support
- 10Revision History
- 11Mechanical, Packaging, and Orderable Information
8.2 Typical Application
Figure 8-1 shows an application in which the TXE8124 devices can be used.
A. P0.0 – P0.7, P1.0, P1.1, P2.1 – P2.3, are configured as inputs.
B. P1.2 – P1.7, P2.0, P2.4-P2.7, are configured as outputs.
C. Resistors are required for inputs (on P-port) that may float. If a driver to an
input will never let the input float, a resistor is not needed. Outputs (in the
P-port) do not need pullup resistors.
Figure 8-1 Typical Application
SchematicA sample application code example is shown below, that may be used for accessing the device.
uint32_t SPIExchangeData(uint32_t transmitData)
{
uint32_t receiveData=0x0;
for(int i = 23; i >= 0; i--)
{
// Shift out MSB first
SPISendBit((transmitData >> i) & 0x01);
receiveData |= SPIGetBit() << i;
}
return(receiveData);
}
uint32_t SPITransmitReceive(uint32_t RnW, uint32_t regPointer, uint32_t multiPort, uint32_t transmitData)
{
uint32_t regWrData=0x0;
uint32_t regRdData=0x0;
regWrData = RnW << 23 | \
regPointer << 12 | \
mulitPort << 8 | \
transmitData << 0;
regRdData = SPIExchangeData(regWrData);
return(regRdData);
}