ST72321R9 STMicroelectronics, ST72321R9 Datasheet - Page 17

• Manufacturer Part Number: ST72321R9
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH,10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST72321R9

• Hdflash Endurance: 100 cycles, data retention
• Clock Sources: crystal/ceramic resonator oscillators, internal RC oscillator, clock security system 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

Legend: x=undefined, R/W=read/write
Notes:
1. The contents of the I/O port DR registers are readable only in output configuration. In input configura-
tion, the values of the I/O pins are returned instead of the DR register contents.
2. The bits associated with unavailable pins must always keep their reset value.
Address
007Ch
007Dh
007Ah
007Bh
007Eh
0058h
006Fh
0070h
0071h
0072h
0073h
0074h
0075h
0076h
0077h
0078h
0079h
007Fh
to
PWM ART
Block
ADC
ADCCSR
ADCDRH
ADCDRL
PWMDCR3
PWMDCR2
PWMDCR1
PWMDCR0
PWMCR
ARTCSR
ARTCAR
ARTARR
ARTICCSR
ARTICR1
ARTICR2
Register
Label
Control/Status Register
Data High Register
Data Low Register
PWM AR Timer Duty Cycle Register 3
PWM AR Timer Duty Cycle Register 2
PWM AR Timer Duty Cycle Register 1
PWM AR Timer Duty Cycle Register 0
PWM AR Timer Control Register
Auto-Reload Timer Control/Status Register
Auto-Reload Timer Counter Access Register
Auto-Reload Timer Auto-Reload Register
AR Timer Input Capture Control/Status Reg.
AR Timer Input Capture Register 1
AR Timer Input Capture Register 1
Reserved Area (24 Bytes)
Reserved Area (2 Bytes)
Register Name
ST72321Rx ST72321ARx ST72321Jx
Status
Reset
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
R/W
Read Only
Read Only
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Read Only
Read Only
Remarks
17/193