Renesas MCU Board for PC4504 Emulator System M34570T-MCU - Manual (Page 27)

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Figure 5.2 P0, P1 and D port output timings
5.7 Port I/O Timing
(1) Port input timing
Port input timings are the same as with the actual MCUs.
(2) Port output timing
When using the M34570T-MCU, output timings are different from those of the actual MCUs for
the following ports that are configured with port emulation circuits:
• Ports P0
0
to P0
3
• Ports P1
0
to P1
3
• Ports D
0
to D
5
With the actual MCUs, changes occur at the beginning of the T3 state of an output instruction.
With the M34570T-MCU, changes occur at the beginning of the T2 state of the next output
instruction. Figure 5.2 shows the port output timings of the actual MCUs and M34570T-MCU.
For the other ports, the output timings are the same as with the actual MCUs.
Output instruction Next output instruction
System clock
X
IN
P0, P1, D port
output timings
on actual MCUs
P0, P1, D
0
to D
5
port output timings of
M34570T-MCU