Datasheet

© 2011-2012 Microchip Technology Inc. Preliminary DS39997C-page 159
PIC24FJ16MC101/102 AND PIC24FJ32MC101/102/104
REGISTER 15-1: 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 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
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
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
bit 3-2 PTCKPS<1:0>: PWM Time Base Input Clock Prescale Select bits
11 = PWM time base input clock period is 64 T
CY (1:64 prescale)
10 = PWM time base input clock period is 16 TCY (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 TCY (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
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