MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 334

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

General-purpose timer (TIMx)
14.3.4
334/995
Figure 123. Control circuit in external clock mode 2
Capture/compare channels
Each Capture/Compare channel is built around a capture/compare register (including a
shadow register), a input stage for capture (with digital filter, multiplexing and prescaler) and
an output stage (with comparator and output control).
The following figure gives an overview of one Capture/Compare channel.
The input stage samples the corresponding TIx input to generate a filtered signal TIxF.
Then, an edge detector with polarity selection generates a signal (TIxFPx) which can be
used as trigger input by the slave mode controller or as the capture command. It is
prescaled before the capture register (ICxPS).
Figure 124. Capture/compare channel (example: channel 1 input stage)
The output stage generates an intermediate waveform which is then used for reference:
OCxRef (active high). The polarity acts at the end of the chain.
f
DTS
TI1
Counter clock = CK_CNT = CK_PSC
TIMx_CCMR1
downcounter
ICF[3:0]
filter
Counter register
TI1F
CNT_EN
Doc ID 13902 Rev 9
f
MASTER
ETRP
ETRF
Detector
ETR
Edge
(from channel 2)
(from channel 2)
TIMx_CCER
TI1F_Rising
TI1F_Falling
TI2F_rising
TI2F_falling
CC1P
34
0
1
0
1
TI1FP1
TI1F_ED
(from slave mode
controller)
TI2FP1
TRC
to the slave mode controller
CC1S[1:0]
35
10
01
11
TIMx_CCMR1
IC1
ICPS[1:0]
/1, /2, /4, /8
divider
36
TIMx_CCER
CC1E
RM0008
IC1PS