Fujitsu FR81S User Manual

Page of 2342
CHAPTER 17: PPG 
 
5. Operation 
 
FUJITSU SEMICONDUCTOR LIMITED 
CHAPTER
 : PPG 
FUJITSU SEMICONDUCTOR CONFIDENTIAL 
58 
 PPG Continuousness Communication Operation   
Figure 5-13 Example of PPG Communication Mode Operation (Continuousness 
Communication) 
Activation trigger
PHCSR
A
PLCSR
B
Down count value
(PTMR)
A
D
C
PPG pin output
Normal polarity
Inverted polarity
CMD
(1) cycle setting
(5) PPG communication mode enable
(7) activation trigger
(8) Load
PHDUT
C
PLDUT
D
PCMDDT
B
(9) down count
(10) match
(11) inversion
(12) down count
(13) borrow
(14) clear
(15) Load
(16)
(23)
PCMDWD
1h (0001)
PPG output counter
1
0
1
0
1F
1F
Shift register
(PCMDDT)
Register Empty flag
(REMP)
Shift register Empty flag
(SREMP)
(2) duty setting
(3) PPG communication mode data width
(4) PPG communication  mode data
(6) transmit for shift register
02h (0000_0010)
02h (0000_0010)
(17) PPG communication mode data
03h (0000_0011)
03h (0000_0011)
(18) borrow
(20) Load
(21)
※1
High format cycle
※2
Low format cycle
※1 : High format duty
※2 : Low format duty
(19) transmit for shift register
 
MB91520 Series
MN705-00010-1v0-E
599