This page describes the following instruction:
- Group: PAIR
- Mnemonic: sr
- Opcode: 228d, E4h
- Encoding: 1_110_0100b (PAIR_SRC_DST)
- Pseudo-code: r=sir; pc++
- S:SERIAL R:RESULT
- Source is the Serial Input register (SIR).
- Destination is the R register.
The 'S' source is a deserialised byte received over the serial bus. See Device Communication for how this works.