Datasheet

ST72334J/N, ST72314J/N, ST72124J
45/153
I/O PORTS (Cont’d)
Table 9. I/O Port Register Map and Reset Values
Notes:
1) The bits corresponding to unavailable pins are forced to 1 by hardware, this affects the reset status value.
Address
(Hex.)
Register
Label
76543210
Reset Value
of all IO port registers
00000000
0000h PADR
MSB LSB0001h PADDR
0002h PAOR
1)
0004h PCDR
MSB LSB0005h PCDDR
0006h PCOR
0008h PBDR
MSB LSB0009h PBDDR
000Ah PBOR
1)
000Ch PEDR
MSB LSB000Dh PEDDR
000Eh PEOR
1)
0010h PDDR
MSB LSB0011h PDDDR
0012h PDOR
1)
0014h PFDR
MSB LSB0015h PFDDR
0016h PFOR