37
256
241
Pin name
System controller
external connection
I/O
Description
252 238
P6
FDT9/P29
I/O
Flash
Data I/O with Flash/General-purpose port
253 239
V4
FDT1
CPUDT1
I/O
Flash
Data I/O with Flash
254 240
U4
FDT8/P28
I/O
Flash
Data I/O with Flash/General-purpose port
255 241
V3
FDT0
CPUDT0
I/O
Flash
Data I/O with Flash
256 NC
NC
0
*1. When using the on-board debugger, Dwire pin (SCLOCK and SDATA) settings are
required.
*2. The iRAM model has NC pins connected to power supply or the GND.
No NC pins of the iROM model are connected to any internal circuit or other pin.