ST72121J4 查看數據表（PDF） - STMicroelectronics

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ST72121J4

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

STMicroelectronics 

Table 3. 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 to

0030h

Block

Port A

Port C

Port B

Port E

Port D

Port F

SPI

WDG

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

SPIDR

SPICR

SPISR

Miscellaneous Register

SPI Data I/O Register

SPI Control Register

SPI Status Register

Reserved Area (6 bytes)

WDGCR

WDGSR

Watchdog Control Register

Watchdog Status Register

Reserved Area (5 bytes)

ST72E121 ST72T121

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)

9/93

9

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