ST72321BR6-AUTO View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72321BR6-AUTO

8-bit MCU for automotive with 32 to 60 Kbyte Flash/ROM, ADC, 5 timers, SPI, SCI, I2C interface

STMicroelectronics 

ST72321Bxxx-Auto

Register and memory map

Table 3. Hardware register map

Address Block Register label

Register name

Reset status Remarks

0000h

0001h

0002h

0003h

0004h

0005h

0006h

0007h

0008h

0009h

000Ah

000Bh

000Ch

000Dh

000Eh

000Fh

0010h

0011h

Port A(2)

Port B(2)

Port C

Port D(2)

Port E(2)

Port F(2)

PADR

PADDR

PAOR

PBDR

PBDDR

PBOR

PCDR

PCDDR

PCOR

PDDR

PDDDR

PDOR

PEDR

PEDDR

PEOR

PFDR

PFDDR

PFOR

Port A Data Register

Port A Data Direction Register

Port A Option Register

Port B Data Register

Port B Data Direction Register

Port B Option Register

Port C Data Register

Port C Data Direction Register

Port C Option Register

Port D Data Register

Port D Data Direction Register

Port D Option Register

Port E Data Register

Port E Data Direction Register

Port E Option Register

Port F Data Register

Port F Data Direction Register

Port F Option Register

00h(1)

00h

00h

00h(1)

00h

00h

00h(1)

00h

00h

00h(1)

00h

00h

00h(1)

00h

00h

00h(1)

00h

00h

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W

R/W(2)

R/W(2)

R/W

R/W

R/W

0012h

to

0017h

0018h

0019h

001Ah

001Bh

001Ch

001Dh

001Eh

Reserved area (6 bytes)

I2CCR

I2C Control Register

I2CSR1

I2C Status Register 1

I2CSR2

I2C Status Register 2

I2C

I2CCCR

I2C Clock Control Register

I2COAR1

I2C Own Address Register 1

I2COAR2

I2C Own Address Register2

I2CDR

I2C Data Register

00h

R/W

00h

Read only

00h

Read only

00h

R/W

00h

R/W

00h

R/W

00h

R/W

001Fh

0020h

Reserved area (2 bytes)

0021h

0022h

0023h

SPIDR

SPI

SPICR

SPICSR

SPI Data I/O Register

SPI Control Register

SPI Control/Status Register

xxh

R/W

0xh

R/W

00h

R/W

0024h

0025h

0026h

0027h

ISPR0

ISPR1

ITC

ISPR2

ISPR3

Interrupt Software Priority Register 0

Interrupt Software Priority Register 1

Interrupt Software Priority Register 2

Interrupt Software Priority Register 3

FFh

R/W

FFh

R/W

FFh

R/W

FFh

R/W

0028h

EICR

External Interrupt Control Register

00h

R/W

0029h FLASH FCSR

Flash Control/Status Register

00h

R/W

002Ah WATCHDOG WDGCR

Watchdog Control Register

7Fh

R/W

002Bh

SICSR

System Integrity Control/Status Register

000x 000xb R/W

002Ch

002Dh

MCC

MCCSR

MCCBCR

Main Clock Control/Status Register

Main Clock Controller/Beep Control Register

00h

R/W

00h

R/W

33/247

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