Abov MC97F6108A User Manual

MC97F6108A User’s manual 11. PPG (Programmable Pulse Generator)
101
11.6 Disable PPG output by comparator 3
PPGMD
4 us
2 us
8 us
by pass
100
011
010
CAPE
PPGH/L (16-bit Counter)
DUTY Compare
REGISTER
Clear & Start
PERIOD Compare
REGISTER
S
R
Q
clear
PPG_PE
PPGO
PPGCH/L
PPGIN[2:0]
3
DETC3EN
clear
PPG_CLK
CMP1IF
CIEDGE[3]
CIPOLA[3]
CIBOTH[3]
CMP3IF
CIENAB[3]
-
+
CMP3
by pass
0.3 us
0.6 us
1.2 us
C3DBSEL[1:0]
CFEDGE[3]
CFPOLA[3]
CFBOTH[3]
CFENAB[3]
CMP4IF
C3_FLAG
PPG
PPGO3DB[1:0]
PPGO on/off-time detect
Figure 39. Disable PPG Output Block Diagram by Comparator 3
PPG output is disabled by comparator 3 flag (C3_FLAG) with enable bit DETC3EN in the PPGCR2
register. When DETC3EN is set and comparator 3 output occurs, PPG outputs its default value. Then
C3_FLAG is cleared when PPG output is disabled. C3_FLAG can be cleared by writting '0'.
Specified period of time after the PPGO goes to low and PPG is disabled (PPGO = 'high') C3_FLAG is
not generated. The time is determined by PPGO3DB register in CA_REGC. To generate C3_FLAG,
PPGMD need to be '1'.
C3_FLAG
DUTY
start pulse
PPGO
PERIOD PERIOD
on-time
DUTY
off-time
Comparator 3
output
PPGIF TPPGOen PPGMD DETC3EN DETC1EN - -
-
PPGCR2
ADDRESS :
E1
H
Figure 40. Disable PPG Output by Comparator 3 (C3_FLAG)

Abov MC97F6108A Specifications

General

Brand	Abov
Model	MC97F6108A
Category	Microcontrollers
Language	English