ST72331N4 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72331N4

8-BIT MCU WITH 8 TO 16K OTP/EPROM, 256 EEPROM, 384 TO 512 BYTES RAM, ADC, WDG, SCI, SPI AND 2 TIMERS

STMicroelectronics 

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ST72E331 ST72T331

Table 4. Hardware Register Memory Map

Address

0000h

0001h

0002h

0003h

0004h

0005h

0006h

0007h

0008h

0009h

000Ah

000Bh

000Ch

000Dh

000Eh

000Fh

0010h

0011h

0012h

0013h

0014h

0015h

0016h

0017h to

001Fh

0020h

0021h

0022h

0023h

0024h to

0029h

002Ah

002Bh

002Ch

002Dh to

0030h

Block

Port A

Port C

Port B

Port E

Port D

Port F

Register

Label

PADR

PADDR

PAOR

PCDR

PCDDR

PCOR

PBDR

PBDDR

PBOR

PEDR

PEDDR

PEOR

PDDR

PDDDR

PDOR

PFDR

PFDDR

PFOR

Register Name

Data Register

Data Direction Register

Option Register

Reserved Area (1 byte)

Data Register

Data Direction Register

Option Register

Reserved Area (1 byte)

Data Register

Data Direction Register

Option Register

Reserved Area (1 byte)

Data Register

Data Direction Register

Option Register

Reserved Area (1 byte)

Data Register

Data Direction Register

Option Register

Reserved Area (1 byte)

Data Register

Data Direction Register

Option Register

Reserved Area (9 bytes)

MISCR

Miscellaneous Register

SPIDR

SPI Data I/O Register

SPI

SPICR

SPI Control Register

SPISR

SPI Status Register

Reserved Area (6 bytes)

WDG

EEPROM

WDGCR

WDGSR

EEPCR

Watchdog Control Register

Watchdog Status Register

EEPROM Control Register

Reserved Area (4 bytes)

Reset

Status

00h

00h

00h

Remarks

R/W

R/W

R/W 1)

00h R/W

00h R/W

00h R/W

00h R/W

00h R/W

00h R/W 1)

00h R/W

00h R/W

0Ch R/W 1)

00h R/W

00h R/W

00h

R/W 1)

00h R/W

00h R/W

28h

R/W 1)

00h

xxh R/W

xxh R/W

00h Read Only

7Fh R/W

00h

R/W3)

00h R/W Register

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