ST72321 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72321

8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE

STMicroelectronics 

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ST72321

I/O PORTS (Cont’d)

Table 12. I/O Port Register Map and Reset Values

Address

(Hex.)

Register

Label

7

6

5

4

3

2

1

0

Reset Value

of all I/O port registers

0

0

0

0

0

0

0

0

0000h PADR

0001h PADDR

MSB

LSB

0002h PAOR

0003h PBDR

0004h PBDDR

MSB

LSB

0005h PBOR

0006h PCDR

0007h PCDDR

MSB

LSB

0008h PCOR

0009h PDDR

000Ah PDDDR

MSB

LSB

000Bh PDOR

000Ch PEDR

000Dh PEDDR

MSB

LSB

000Eh PEOR

000Fh PFDR

0010h PFDDR

MSB

LSB

0011h PFOR

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