MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 298

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

Specifications of MCBSTM32EXL

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

Advanced-control timers (TIM1&TIM8)
298/995
Bits 11:8 ETF[3:0]: External trigger filter
Bits 6:4 TS[2:0]: Trigger selection
Bit 7 MSM: Master/slave mode
Bit 3 Reserved, always read as 0.
See
for each Timer.
Note: These bits must be changed only when they are not used (e.g. when SMS=000) to
This bit-field then defines the frequency used to sample ETRP signal and the length of the
digital filter applied to ETRP. The digital filter is made of an event counter in which N events
are needed to validate a transition on the output:
0000: No filter, sampling is done at f
0001: f
0010: f
0011: f
0100: f
0101: f
0110: f
0111: f
1000: f
1001: f
1010: f
1011: f
1100: f
1101: f
1110: f
1111: f
0: No action
1: The effect of an event on the trigger input (TRGI) is delayed to allow a perfect
synchronization between the current timer and its slaves (through TRGO). It is useful if we
want to synchronize several timers on a single external event.
This bit-field selects the trigger input to be used to synchronize the counter.
000: Internal Trigger 0 (ITR0)
001: Internal Trigger 1 (ITR1)
010: Internal Trigger 2 (ITR2)
011: Internal Trigger 3 (ITR3)
100: TI1 Edge Detector (TI1F_ED)
101: Filtered Timer Input 1 (TI1FP1)
110: Filtered Timer Input 2 (TI2FP2)
111: External Trigger input (ETRF)
Table 72: TIMx Internal trigger connection on page 299
avoid wrong edge detections at the transition.
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
SAMPLING
=f
=f
=f
=f
=f
=f
=f
=f
=f
=f
=f
=f
=f
=f
=f
CK_INT
CK_INT
CK_INT
DTS
DTS
DTS
DTS
DTS
DTS
DTS
DTS
DTS
DTS
DTS
DTS
/2, N=6.
/2, N=8.
/4, N=6.
/4, N=8.
/8, N=6.
/8, N=8.
/16, N=5.
/16, N=6.
/16, N=8.
/32, N=5.
/32, N=6.
/32, N=8.
, N=2.
, N=4.
, N=8.
Doc ID 13902 Rev 9
DTS
.
for more details on ITRx meaning
RM0008