Техническая Спецификация для Microchip Technology MA330019
© 2007-2012 Microchip Technology Inc.
DS70291G-page 217
dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
16.4
PWM Control Registers
REGISTER 16-1:
PxTCON: PWM TIME BASE CONTROL REGISTER
R/W-0
U-0
R/W-0
U-0
U-0
U-0
U-0
U-0
PTEN
—
PTSIDL
—
—
—
—
—
bit 15
bit 8
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
PTOPS<3:0>
PTCKPS<1:0>
PTMOD<1:0>
bit 7
bit 0
Legend:
R = Readable bit
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 15
PTEN: PWM Time Base Timer Enable bit
1 = PWM time base is on
0 = PWM time base is off
1 = PWM time base is on
0 = PWM time base is off
bit 14
Unimplemented: Read as ‘0’
bit 13
PTSIDL: PWM Time Base Stop in Idle Mode bit
1 = PWM time base halts in CPU Idle mode
0 = PWM time base runs in CPU Idle mode
1 = PWM time base halts in CPU Idle mode
0 = PWM time base runs in CPU Idle mode
bit 12-8
Unimplemented: Read as ‘0’
bit 7-4
PTOPS<3:0>: PWM Time Base Output Postscale Select bits
1111 = 1:16 postscale
•
•
•
0001 = 1:2 postscale
0000 = 1:1 postscale
1111 = 1:16 postscale
•
•
•
0001 = 1:2 postscale
0000 = 1:1 postscale
bit 3-2
PTCKPS<1:0>: PWM Time Base Input Clock Prescale Select bits
11 = PWM time base input clock period is 64 T
11 = PWM time base input clock period is 64 T
CY
(1:64 prescale)
10 = PWM time base input clock period is 16 T
CY
(1:16 prescale)
01 = PWM time base input clock period is 4 T
CY
(1:4 prescale)
00 = PWM time base input clock period is T
CY
(1:1 prescale)
bit 1-0
PTMOD<1:0>: PWM Time Base Mode Select bits
11 = PWM time base operates in a Continuous Up/Down Count mode with interrupts for double
11 = PWM time base operates in a Continuous Up/Down Count mode with interrupts for double
PWM updates
10 = PWM time base operates in a Continuous Up/Down Count mode
01 = PWM time base operates in Single Pulse mode
00 = PWM time base operates in a Free-Running mode
01 = PWM time base operates in Single Pulse mode
00 = PWM time base operates in a Free-Running mode