ST72321B STMICROELECTRONICS [STMicroelectronics], ST72321B Datasheet - Page 51
ST72321B
Manufacturer Part Number
ST72321B
Description
64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC, five timers, SPI, SCI, I2C interface
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST72321B.pdf
(187 pages)
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I/O PORTS (Cont’d)
Table 13. I/O Port Register Map and Reset Values
Related Documentation
AN 970: SPI Communication between ST7 and
EEPROM
Address
of all I/O port registers
(Hex.)
000Ah
000Bh
000Ch
000Dh
000Eh
0000h
0001h
0002h
0003h
0004h
0005h
0006h
0007h
0008h
0009h
000Fh
0010h
0011h
Reset Value
PADR
PADDR
PAOR
PBDR
PBDDR
PBOR
PCDR
PCDDR
PCOR
PDDR
PDDDR
PDOR
PEDR
PEDDR
PEOR
PFDR
PFDDR
PFOR
Register
Label
MSB
MSB
MSB
MSB
MSB
MSB
7
0
6
0
5
0
AN1045: S/W implementation of I2C bus master
AN1048: Software LCD driver
4
0
3
0
2
0
1
0
LSB
LSB
LSB
LSB
LSB
LSB
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0
0
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