Specifications

ST72104Gx, ST72215Gx, ST72216Gx, ST72254Gx
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Table 2. Hardware Register Map
Address Block
Register
Label
Register Name
Reset
Status
Remarks
0000h
0001h
0002h
Port C
PCDR
PCDDR
PCOR
Port C Data Register
Port C Data Direction Register
Port C Option Register
00h
1)
00h
00h
R/W
2)
R/W
2)
R/W
2)
0003h Reserved (1 Byte)
0004h
0005h
0006h
Port B
PBDR
PBDDR
PBOR
Port B Data Register
Port B Data Direction Register
Port B Option Register
00h
1)
00h
00h
R/W
R/W
R/W.
0007h Reserved (1 Byte)
0008h
0009h
000Ah
Port A
PADR
PADDR
PAOR
Port A Data Register
Port A Data Direction Register
Port A Option Register
00h
1)
00h
00h
R/W
R/W
R/W
000Bh
to
001Fh
Reserved (21 Bytes)
0020h MISCR1 Miscellaneous Register 1 00h R/W
0021h
0022h
0023h
SPI
SPIDR
SPICR
SPISR
SPI Data I/O Register
SPI Control Register
SPI Status Register
xxh
0xh
00h
R/W
R/W
Read Only
0024h WATCHDOG WDGCR Watchdog Control Register 7Fh R/W
0025h CRSR Clock, Reset, Supply Control / Status Register 000x 000x R/W
0026h
0027h
Reserved (2 bytes)
0028h
0029h
002Ah
002Bh
002Ch
002Dh
002Eh
I
2
C
I2CCR
I2CSR1
I2CSR2
I2CCCR
I2COAR1
I2COAR2
I2CDR
Control Register
Status Register 1
Status Register 2
Clock Control Register
Own Address Register 1
Own Address Register 2
Data Register
00h
00h
00h
00h
00h
00h
00h
R/W
Read Only
Read Only
R/W
R/W
R/W
R/W
002Fh
to
0030h
Reserved (2 Bytes)