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ST72321AR9-Auto 数据表(PDF) 5 Page - STMicroelectronics

部件名 ST72321AR9-Auto
功能描述  PLL for 2x frequency multiplication
Download  243 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST72321AR9-Auto 数据表(HTML) 5 Page - STMicroelectronics

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ST72321xx-Auto
Contents
Doc ID 13829 Rev 1
5/243
12.2.1
Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
12.2.2
Counter clock and prescaler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
12.2.3
Counter and prescaler initialization . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
12.2.4
Output compare control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
12.2.5
Independent PWM signal generation . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
12.2.6
Output compare and time base interrupt . . . . . . . . . . . . . . . . . . . . . . . . 90
12.2.7
External clock and event detector mode . . . . . . . . . . . . . . . . . . . . . . . . 90
12.2.8
Input capture function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
12.2.9
External interrupt capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
12.3
ART registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
12.3.1
Control/status register (ARTCSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
12.3.2
Counter access register (ARTCAR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
12.3.3
Auto-reload register (ARTARR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
12.3.4
PWM control register (PWMCR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
12.3.5
Duty cycle registers (PWMDCRx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
12.3.6
Input capture control / status register (ARTICCSR) . . . . . . . . . . . . . . . . 96
12.3.7
Input capture registers (ARTICRx) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
13
16-bit timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
13.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
13.2
Main features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
13.3
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
13.3.1
Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
13.3.2
External clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
13.3.3
Input capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
13.3.4
Output compare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
13.3.5
Forced compare output capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
13.3.6
One Pulse mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
13.3.7
Pulse width modulation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
13.4
Low power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
13.5
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
13.6
Summary of timer modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
13.7
16-bit timer registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
13.7.1
Control register 1 (CR1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
13.7.2
Control register 2 (CR2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
13.7.3
Control/status register (CSR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115


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