CHAPTER 4 PORT FUNCTIONS
User’s Manual U16899EJ2V0UD
102
4.2.10 Port 13
Port 13 is a 1-bit output-only port.
Figure 4-19 shows a block diagram of port 13.
Figure 4-19. Block Diagram of P130
RD
Output latch
(P130)
WR
PORT
P130
Internal bus
RD: Read
signal
WR
××
: Write
signal
Remark When reset is effected, P130 outputs a low level. If P130 is set to output a high level before reset is
effected, the output signal of P130 can be dummy-output as the CPU reset signal.