ST72104G_01 Datasheet, PDF (11/140 Pages) STMicroelectronics – 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES

ST72104G, ST72215G, ST72216G, ST72254G
Table 2. Hardware Register Map
Address
Block
Register
Label
0000h
0001h
0002h
0003h
0004h
0005h
0006h
0007h
Port C
PCDR
PCDDR
PCOR
Port B
PBDR
PBDDR
PBOR
0008h
0009h
000Ah
Port A
PADR
PADDR
PAOR
000Bh
to
001Fh
0020h
0021h
0022h
0023h
0024h
0025h
0026h
0027h
0028h
0029h
002Ah
002Bh
002Ch
002Dh
002Eh
002Fh
to
0030h
MISCR1
SPIDR
SPI
SPICR
SPISR
WATCHDOG WDGCR
CRSR
I2CCR
I2CSR1
I2CSR2
I²C
I2CCCR
I2COAR1
I2COAR2
I2CDR
Register Name
Port C Data Register
Port C Data Direction Register
Port C Option Register
Reserved (1 Byte)
Port B Data Register
Port B Data Direction Register
Port B Option Register
Reserved (1 Byte)
Port A Data Register
Port A Data Direction Register
Port A Option Register
Reset
Status
00h ¹⁾
00h
00h
Remarks
R/W ²⁾
R/W ²⁾
R/W ²⁾
00h ¹⁾
00h
00h
R/W
R/W
R/W.
00h ¹⁾
00h
R/W
R/W
00h
R/W
Reserved (21 Bytes)
Miscellaneous Register 1
00h R/W
SPI Data I/O Register
SPI Control Register
SPI Status Register
xxh
R/W
0xh R/W
00h Read Only
Watchdog Control Register
7Fh R/W
Clock, Reset, Supply Control / Status Register 000x 000x R/W
Reserved (2 bytes)
Control Register
Status Register 1
Status Register 2
Clock Control Register
Own Address Register 1
Own Address Register 2
Data Register
00h R/W
00h Read Only
00h Read Only
00h R/W
00h R/W
00h R/W
00h R/W
Reserved (4 Bytes)
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