STM32W108HBU64TR STMicroelectronics, STM32W108HBU64TR Datasheet - Page 137

• Manufacturer Part Number: STM32W108HBU64TR
• Description: 16/32-BITS MICROS
• Manufacturer: STMicroelectronics
• Series: STM32r

Specifications of STM32W108HBU64TR

• Applications: RF4CE, Remote Control
• Core Processor: ARM® Cortex-M3™
• Program Memory Type: FLASH (128 kB)
• Controller Series: STM32W
• Ram Size: 8K x 8
• Interface: I²C, SPI, UART/USART
• Number Of I /o: 18
• Voltage - Supply: 1.18 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 40-VFQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

STM32W108CB, STM32W108HB
Note:
10.1.15
●
●
●
When a rising edge occurs on TI1 (Timer 1), both counters start counting synchronously on
the internal clock and both timers' INT_TIMTIF flags are set.
In this example both timers are initialized before starting by setting their respective TIM_UG
bits. Both counters starts from 0, but an offset can be inserted between them by writing any
of the counter registers (TIMx_CNT). The master/slave mode inserts a delay between
CNT_EN and CK_PSC on Timer 1.
Figure 49. Triggering Timers 1 and 2 with Timer 1 TI1 input
Timer signal descriptions
Table 26.
CK_PSC
Configure the Timer 1 in master/slave mode by writing TIM_MSM = 1 (TIM1_SMCR
register).
Configure Timer 2 to get the input trigger from Timer 1 (TIM_TS = 000 in the
TIM2_SMCR register).
Configure Timer 2 in trigger mode (TIM_SMS = 110 in the TIM2_SMCR register).
CK_INT
Signal
ETRF
ETRP
ETR
ICy
Timer signal descriptions
Internal/external
External
Internal
Internal
Internal
Internal
Internal
Doc ID 16252 Rev 8
Internal clock source: connects to STM32W108 peripheral
clock (PCLK) in internal clock mode.
Input to the clock prescaler.
External trigger input (used in external timer mode 2): a clock
selected by TIM_EXTRIGSEL in TIMx_OR.
External trigger: ETRP after filtering.
External trigger: ETR after polarity selection, edge detection
and prescaling.
Input capture or clock: TIy after filtering and edge detection.
Description
General-purpose timers
137/209