Ultralow power ARM-based 32-bit MCU with 384 Kbytes Flash ... - Keil

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Functional overviewSTM32L162VD, STM32L162ZD, STM32L162QD, STM32L162RD3.18 Timers and watchdogsThe ultralow power STM32L162xD devices include seven general-purpose timers, two basictimers, and two watchdog timers.Table 2 compares the features of the general-purpose and basic timers.Table 2.TimerTIM2,TIM3,TIM4TIM5TIM9TIM10,TIM11TIM6,TIM7Timer feature comparisonCounterresolution16-bit32-bit16-bit16-bit16-bitCounter typeUp, down,up/downUp, down,up/downUp, down,up/downUpUpPrescaler factorAny integer between1 and 65536Any integer between1 and 65536Any integer between1 and 65536Any integer between1 and 65536Any integer between1 and 65536DMA requestgenerationCapture/comparechannelsComplementaryoutputsYes 4 NoYes 4 NoNo 2 NoNo 1 NoYes 0 No3.18.1 General-purpose timers (TIM2, TIM3, TIM4, TIM5, TIM9, TIM10 andTIM11)There are seven synchronizable general-purpose timers embedded in the STM32L162xDdevices (see Table 2 for differences).TIM2, TIM3, TIM4, TIM5TIM2, TIM3, TIM4 are based on 16-bit auto-reload up/down counter. TIM5 is based on a 32-bit auto-reload up/down counter. They include a 16-bit prescaler. They feature fourindependent channels each for input capture/output compare, PWM or one-pulse modeoutput. This gives up to 16 input captures/output compares/PWMs on the largest packages.TIM2, TIM3, TIM4, TIM5 general-purpose timers can work together or with the TIM10,TIM11 and TIM9 general-purpose timers via the Timer Link feature for synchronization orevent chaining. Their counter can be frozen in debug mode. Any of the general-purposetimers can be used to generate PWM outputs.TIM2, TIM3, TIM4, TIM5 all have independent DMA request generation.These timers are capable of handling quadrature (incremental) encoder signals and thedigital outputs from 1 to 3 hall-effect sensors.24/124 Doc ID 022268 Rev 2
STM32L162VD, STM32L162ZD, STM32L162QD, STM32L162RDFunctional overviewTIM10, TIM11 and TIM9TIM10 and TIM11 are based on a 16-bit auto-reload upcounter. TIM9 is based on a 16-bitauto-reload up/down counter. They include a 16-bit prescaler. TIM10 and TIM11 feature oneindependent channel, whereas TIM9 has two independent channels for input capture/outputcompare, PWM or one-pulse mode output. They can be synchronized with the TIM2, TIM3,TIM4, TIM5 full-featured general-purpose timers.They can also be used as simple time bases and be clocked by the LSE clock source(32.768 kHz) to provide time bases independent from the main CPU clock.3.18.2 Basic timers (TIM6 and TIM7)These timers are mainly used for DAC trigger generation. They can also be used as generic16-bit time bases.3.18.3 SysTick timerThis timer is dedicated to the OS, but could also be used as a standard downcounter. It isbased on a 24-bit downcounter with autoreload capability and a programmable clocksource. It features a maskable system interrupt generation when the counter reaches 0.3.18.4 Independent watchdog (IWDG)The independent watchdog is based on a 12-bit downcounter and 8-bit prescaler. It isclocked from an independent 37 kHz internal RC and, as it operates independently of themain clock, it can operate in Stop and Standby modes. It can be used either as a watchdogto reset the device when a problem occurs, or as a free-running timer for application timeoutmanagement. It is hardware- or software-configurable through the option bytes. The countercan be frozen in debug mode.3.18.5 Window watchdog (WWDG)The window watchdog is based on a 7-bit downcounter that can be set as free-running. Itcan be used as a watchdog to reset the device when a problem occurs. It is clocked from themain clock. It has an early warning interrupt capability and the counter can be frozen indebug mode.3.19 Communication interfaces3.19.1 I²C busUp to two I²C bus interfaces can operate in multimaster and slave modes. They can supportstandard and fast modes.They support dual slave addressing (7-bit only) and both 7- and 10-bit addressing in mastermode. A hardware CRC generation/verification is embedded.They can be served by DMA and they support SM Bus 2.0/PM Bus.Doc ID 022268 Rev 2 25/124
Page 1 and 2: STM32L162VD STM32L162ZDSTM32L162QD
Page 3 and 4: STM32L162VD, STM32L162ZD, STM32L162
Page 6: List of tablesSTM32L162VD, STM32L16
Page 26 and 27: Functional overviewSTM32L162VD, STM
Page 28 and 29: Pin descriptionsSTM32L162VD, STM32L
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Page 48 and 49: Electrical characteristicsSTM32L162
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Electrical characteristicsSTM32L162
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Package characteristicsSTM32L162VD,
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Ordering information schemeSTM32L16
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STM32L162VD, STM32L162ZD, STM32L162
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Ultralow power ARM-based 32-bit MCU with 384 Kbytes Flash ... - Keil

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