ST72521R9-Auto STMicroelectronics, ST72521R9-Auto Datasheet - Page 5
ST72521R9-Auto
Manufacturer Part Number
ST72521R9-Auto
Description
8-bit MCU for automotive
Manufacturer
STMicroelectronics
Datasheet
1.ST72521R9-AUTO.pdf
(276 pages)
Specifications of ST72521R9-Auto
Hdflash Endurance
100 cycles, data retention 20 years
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
4 Power Saving Modes
Halt, Active Halt, Wait and Slow
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ST72521xx-Auto
13
12.3
16-bit timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
13.1
13.2
13.3
13.4
13.5
13.6
13.7
12.2.1
12.2.2
12.2.3
12.2.4
12.2.5
12.2.6
12.2.7
12.2.8
12.2.9
ART registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
12.3.1
12.3.2
12.3.3
12.3.4
12.3.5
12.3.6
12.3.7
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
13.3.1
13.3.2
13.3.3
13.3.4
13.3.5
13.3.6
13.3.7
Low power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Summary of timer modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
16-bit timer registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
13.7.1
13.7.2
13.7.3
Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Counter clock and prescaler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Counter and prescaler initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Output compare control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Independent PWM signal generation . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Output compare and time base interrupt . . . . . . . . . . . . . . . . . . . . . . . . 93
External clock and event detector mode . . . . . . . . . . . . . . . . . . . . . . . . 93
Input capture function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
External interrupt capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Control/status register (ARTCSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Counter access register (ARTCAR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Auto-reload register (ARTARR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
PWM control register (PWMCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Duty cycle registers (PWMDCRx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Input capture control / status register (ARTICCSR) . . . . . . . . . . . . . . . . 99
Input capture registers (ARTICRx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
External clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Input capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Output compare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Forced compare output capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
One Pulse mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Pulse width modulation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Control register 1 (CR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Control register 2 (CR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Control/status register (CSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Doc ID 17660 Rev 1
Contents
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