ST72321BR9 STMicroelectronics, ST72321BR9 Datasheet - Page 51
ST72321BR9
Manufacturer Part Number
ST72321BR9
Description
8-bit MCU
Manufacturer
STMicroelectronics
Datasheet
1.ST72321BJ6.pdf
(187 pages)
Specifications of ST72321BR9
Hdflash Endurance
100 cycles, data retention
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
Four Power Saving Modes
Halt, Active-Halt, Wait and Slow
Main Clock Controller With
Real time base, Beep and Clock-out capabilities
Two 16-bit Timers With
2 input captures, 2 output compares, external clock input on one timer, PWM and pulse generator modes
8-bit Pwm Auto-reload Timer With
2 input captures, 4 PWM outputs, output compare and time base interrupt, external clock with event detector
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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.)
000Ch
000Dh
000Ah
000Bh
000Eh
000Fh
0000h
0001h
0002h
0003h
0004h
0005h
0006h
0007h
0008h
0009h
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
ST72321BRx, ST72321BARx ST72321BJx, ST72321BKx
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
51/187
0
0
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