TMP88CS42NG Datasheet, PDF (54/216 Pages) Toshiba Semiconductor – 8 Bit Microcontroller

5. Input/Output Ports
TMP88CS42NG
When an operation is performed for read from any input/output port except programmable input/output ports,
whether the input value of the pin or the content of the output latch is read depends on the instruction executed, as
shown below.
1. Instructions which read the content of the output latch
- XCH r, (src)
- SET/CLR/CPL (src).b
- SET/CLR/CPL (pp).g
- LD (src).b, CF
- LD (pp).b, CF
- XCH CF, (src). b
- ADD/ADDC/SUB/SUBB/AND/OR/XOR (src), n
- ADD/ADDC/SUB/SUBB/AND/OR/XOR (src), (HL) instructions, the (src) side thereof
- MXOR (src), m
2. Instructions which read the input value of the pin
Any instructions other than those listed above and ADD/ADDC/SUB/SUBB/AND/OR/XOR (src),(HL)
instructions, the (HL) side thereof
Page 44