Datasheet

PIC24FJ128GA010 FAMILY
DS39747F-page 120  2005-2012 Microchip Technology Inc.
13.1 Input Capture Registers
REGISTER 13-1: ICxCON: INPUT CAPTURE x CONTROL REGISTER
U-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
— —ICSIDL— — — — —
bit 15 bit 8
R/W-0 R/W-0 R/W-0 R-0, HC R/W-0, HC R/W-0 R/W-0 R/W-0
ICTMR
(1)
ICI1 ICI0 ICOV ICBNE ICM2 ICM1 ICM0
bit 7 bit 0
Legend: HC = Hardware Clearable 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 15-14 Unimplemented: Read as ‘0’
bit 13 ICSIDL: Input Capture x Module Stop in Idle Control bit
1 = Input capture module will Halt in CPU Idle mode
0 = Input capture module will continue to operate in CPU Idle mode
bit 12-8 Unimplemented: Read as ‘0’
bit 7 ICTMR: Input Capture x Timer Select bit
(1)
1 = TMR2 contents are captured on capture event
0 = TMR3 contents are captured on capture event
bit 6-5 ICI<1:0>: Select Number of Captures per Interrupt bits
11 = Interrupt on every fourth capture event
10 = Interrupt on every third capture event
01 = Interrupt on every second capture event
00 = Interrupt on every capture event
bit 4 ICOV: Input Capture x Overflow Status Flag bit (read-only)
1 = Input capture overflow occurred
0 = No input capture overflow occurred
bit 3 ICBNE: Input Capture x Buffer Empty Status bit (read-only)
1 = Input capture buffer is not empty, at least one more capture value can be read
0 = Input capture buffer is empty
bit 2-0 ICM<2:0>: Input Capture x Mode Select bits
111 = Input capture functions as an interrupt pin only when the device is in Sleep or Idle mode (rising
edge detect only, all other control bits are not applicable)
110 = Unused (module is disabled)
101 = Capture mode, every 16th rising edge
100 = Capture mode, every 4th rising edge
011 = Capture mode, every rising edge
010 = Capture mode, every falling edge
001 = Capture mode, every edge (rising and falling); ICI<1:0> does not control interrupt generation
for this mode
000 = Input capture module is turned off
Note 1: Timer selections may vary. Refer to the specific device data sheet for details.