Panasonic MN103001G/F01K - Manual (Page 429)

I/O Ports
15-63
15.14.3 Pin Configurations
Table 15-14-1 shows the pin configurations for port C.
Table 15-14-1 Port C Configuration
Port Pin No. PCn PCnM = "1" PCnM = "0"
Port C 5 PC0 General-purpose output port A16 Address output
4 PC1 General-purpose output port A17 Address output
2 PC2 General-purpose output port A18 Address output
1 PC3 General-purpose output port A19 Address output
[Note 1]
: When reset (whether in address/data separate mode or address/data multiplex mode)
[Note 2]
When the bus authority is granted, A19 to A16 go to high impedance.