SPEL_MemIn

Description

Reads a byte of memory IO.

Common Inputs and Outputs

Reference: Function Blocks Common Inputs and Outputs

Inputs

PortNum

UINT port number to be read. Port number refers to byte number.

Outputs

Value

BYTE value of the port.

Operation

Reference: Function Blocks General Operation

For more details, refer to the following manual:

"SPEL+ Language Reference manual - MemIn Function"

Example

To read port number 0 of memory I/O, run the Function Block as shown below.