ST72521AR9 STMicroelectronics, ST72521AR9 Datasheet - Page 17

• Manufacturer Part Number: ST72521AR9
• Description: 8-BIT MCU WITH NESTED INTERRUPTS, FLASH, 10-BIT ADC, FIVE TIMERS, SPI, SCI, I2C, CAN INTERFACE
• Manufacturer: STMicroelectronics

Specifications of ST72521AR9

• 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

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
005Ch
005Dh
007Ch
007Dh
005Ah
005Bh
005Eh
005Fh
006Fh
007Ah
007Bh
007Eh
007Fh
0050h
0051h
0052h
0053h
0054h
0055h
0056h
0057h
0058h
0059h
0060h
0070h
0071h
0072h
0073h
0074h
0075h
0076h
0077h
0078h
0079h
to
PWM ART
Block
CAN
ADC
SCI
SCISR
SCIDR
SCIBRR
SCICR1
SCICR2
SCIERPR
SCIETPR
CANISR
CANICR
CANCSR
CANBRPR
CANBTR
CANPSR
ADCCSR
ADCDRH
ADCDRL
PWMDCR3
PWMDCR2
PWMDCR1
PWMDCR0
PWMCR
ARTCSR
ARTCAR
ARTARR
ARTICCSR
ARTICR1
ARTICR2
Register
Label
SCI Status Register
SCI Data Register
SCI Baud Rate Register
SCI Control Register 1
SCI Control Register 2
SCI Extended Receive Prescaler Register
Reserved area
SCI Extended Transmit Prescaler Register
CAN Interrupt Status Register
CAN Interrupt Control Register
CAN Control / Status Register
CAN Baud Rate Prescaler Register
CAN Bit Timing Register
CAN Page Selection Register
First address
to
Last address of CAN page x
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 (2 Bytes)
Reserved Area (2 Bytes)
Register Name
ST72F521, ST72521B
x000 0000b
Status
Reset
C0h
00h
00h
00h
00h
00h
00h
00h
00h
23h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
00h
xxh
---
--
Read Only
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
See CAN
Description
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
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