Specifications
Table Of Contents
- Contents
- List of tables
- List of figures
- 1 Description
- 2 Register and memory map
- 3 Flash program memory
- 4 Central processing unit
- 5 Supply, reset and clock management
- 6 Interrupts
- 7 Power saving modes
- 8 I/O ports
- 9 Window watchdog (WWDG)
- 10 Main clock controller with real time clock MCC/RTC
- 11 PWM auto-reload timer (ART)
- 11.1 Introduction
- 11.2 Functional description
- 11.2.1 Counter
- 11.2.2 Counter clock and prescaler
- 11.2.3 Counter and prescaler Initialization
- 11.2.4 Output compare control
- 11.2.5 Independent PWM signal generation
- 11.2.6 Output compare and Time base interrupt
- 11.2.7 External clock and event detector mode
- 11.2.8 Input capture function
- 11.2.9 External interrupt capability
- 11.3 Register description
- 12 16-bit timer
- 12.1 Introduction
- 12.2 Main features
- 12.3 Functional description
- 12.4 Low power modes
- 12.5 Interrupts
- 12.6 Summary of timer modes
- 12.7 Register description
- 12.7.1 Control register 1 (CR1)
- 12.7.2 Control register 2 (CR2)
- 12.7.3 Control/status register (CSR)
- 12.7.4 Input capture 1 high register (IC1HR)
- 12.7.5 Input capture 1 low register (IC1LR)
- 12.7.6 Output compare 1 high register (OC1HR)
- 12.7.7 Output compare 1 low register (OC1LR)
- 12.7.8 Output compare 2 high register (OC2HR)
- 12.7.9 Output compare 2 low register (OC2LR)
- 12.7.10 Counter high register (CHR)
- 12.7.11 Counter low register (CLR)
- 12.7.12 Alternate counter high register (ACHR)
- 12.7.13 Alternate counter low register (ACLR)
- 12.7.14 Input capture 2 high register (IC2HR)
- 12.7.15 Input capture 2 low register (IC2LR)
- 13 8-bit timer (TIM8)
- 13.1 Introduction
- 13.2 Main features
- 13.3 Functional description
- 13.4 Low power modes
- 13.5 Interrupts
- 13.6 Summary of timer modes
- 13.7 Register description
- 13.7.1 Control register 1 (CR1)
- 13.7.2 Control register 2 (CR2)
- 13.7.3 Control/status register (CSR)
- 13.7.4 Input capture 1 register (IC1R)
- 13.7.5 Output compare 1 register (OC1R)
- 13.7.6 Output compare 2 register (OC2R)
- 13.7.7 Counter register (CTR)
- 13.7.8 Alternate counter register (ACTR)
- 13.7.9 Input capture 2 register (IC2R)
- 13.8 8-bit timer register map
- 14 Serial peripheral interface (SPI)
- 15 LINSCI serial communication interface (LIN master/slave)
- 15.1 Introduction
- 15.2 SCI features
- 15.3 LIN features
- 15.4 General description
- 15.5 SCI mode - functional description
- 15.6 Low power modes
- 15.7 Interrupts
- 15.8 SCI mode register description
- 15.9 LIN mode - functional description.
- 15.9.1 Entering LIN mode
- 15.9.2 LIN transmission
- 15.9.3 LIN reception
- 15.9.4 LIN error detection
- 15.9.5 LIN baud rate
- 15.9.6 LIN slave baud rate generation
- 15.9.7 LINSCI clock tolerance
- 15.9.8 Clock deviation causes
- 15.9.9 Error due to LIN synch measurement
- 15.9.10 Error due to baud rate quantization
- 15.9.11 Impact of clock deviation on maximum baud rate
- 15.10 LIN mode register description
- 16 LINSCI serial communication interface (LIN master only)
- 16.1 Introduction
- 16.2 Main features
- 16.3 General description
- 16.4 Functional description
- 16.5 Low power modes
- 16.6 Interrupts
- 16.7 SCI synchronous transmission
- 16.8 Register description
- 16.8.1 Status register (SCISR)
- 16.8.2 Control register 1 (SCICR1)
- 16.8.3 Control register 2 (SCICR2)
- 16.8.4 Control Register 3 (SCICR3)
- 16.8.5 Data register (SCIDR)
- 16.8.6 Baud rate register (SCIBRR)
- 16.8.7 Extended receive prescaler division register (SCIERPR)
- 16.8.8 Extended transmit prescaler division register (SCIETPR)
- 17 10-bit A/D converter (ADC)
- 18 Instruction set
- 19 Electrical characteristics
- 19.1 Parameter conditions
- 19.2 Absolute maximum ratings
- 19.3 Operating conditions
- 19.4 Supply current characteristics
- 19.5 Clock and timing characteristics
- 19.6 Auto wakeup from halt oscillator (AWU)
- 19.7 Memory characteristics
- 19.8 EMC characteristics
- 19.9 I/O port pin characteristics
- 19.10 Control pin characteristics
- 19.11 Timer peripheral characteristics
- 19.12 Communication interface characteristics
- 19.13 10-bit ADC characteristics
- 20 Package characteristics
- 21 Device configuration and ordering information
- 22 Development tools
- 23 Important notes
- 24 Revision history
ST72361xx-Auto 16-bit timer
Doc ID 12468 Rev 3 111/279
Figure 55. Output compare timing diagram, f
TIMER
=f
CPU
/2
Figure 56. Output compare timing diagram, f
TIMER
=f
CPU
/4
12.3.8 One pulse mode
One Pulse mode enables the generation of a pulse when an external event occurs. This
mode is selected via the OPM bit in the CR2 register.
The One Pulse mode uses the Input Capture1 function and the Output Compare1 function.
Procedure
To use One Pulse mode:
1. Load the OC1R register with the value corresponding to the length of the pulse (see the
formula in the opposite column).
2. Select the following in the CR1 register:
– Using the OLVL1 bit, select the level to be applied to the OCMP1 pin after the
pulse.
– Using the OLVL2 bit, select the level to be applied to the OCMP1 pin during the
pulse.
– Select the edge of the active transition on the ICAP1 pin with the IEDG1 bit (the
ICAP1 pin must be configured as floating input).
INTERNAL CPU CLOCK
TIMER CLOCK
COUNTER REGISTER
OUTPUT COMPARE REGISTER i (OCRi)
OUTPUT COMPARE FLAG i (OCFi)
OCMPi PIN (OLVLi =1)
2ED3
2ED0 2ED1 2ED2
2ED3
2ED42ECF
INTERNAL CPU CLOCK
TIMER CLOCK
COUNTER REGISTER
OUTPUT COMPARE REGISTER i (OCRi)
COMPARE REGISTER i LATCH
2ED3
2ED0 2ED1 2ED2
2ED3
2ED42ECF
OCMPi PIN (OLVLi =1)
OUTPUT COMPARE FLAG i (OCFi)