70291E Datasheet, PDF (204/436 Pages) Microchip Technology – High-Performance, 16-bit Digital Signal Controllers

dsPIC33FJ32MC302/304, dsPIC33FJ64MCX02/X04 AND dsPIC33FJ128MCX02/X04
14.1 Input Capture Registers
REGISTER 14-1: ICxCON: INPUT CAPTURE x CONTROL REGISTER (x = 1, 2, 7 or 8)
U-0
U-0
R/W-0
U-0
U-0
U-0
U-0
—
—
ICSIDL
—
—
—
—
bit 15
U-0
—
bit 8
R/W-0
ICTMR
bit 7
R/W-0
R/W-0
ICI<1:0>
R-0, HC
ICOV
R-0, HC
ICBNE
R/W-0
R/W-0
ICM<2:0>
R/W-0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
HC = Cleared in Hardware
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-14
bit 13
bit 12-8
bit 7
bit 6-5
bit 4
bit 3
bit 2-0
Unimplemented: Read as ‘0’
ICSIDL: Input Capture Module Stop in Idle Control bit
1 = Input capture module halts in CPU Idle mode
0 = Input capture module continues to operate in CPU Idle mode
Unimplemented: Read as ‘0’
ICTMR: Input Capture Timer Select bits
1 = TMR2 contents are captured on capture event
0 = TMR3 contents are captured on capture event
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
ICOV: Input Capture Overflow Status Flag bit (read-only)
1 = Input capture overflow occurred
0 = No input capture overflow occurred
ICBNE: Input Capture 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
ICM<2:0>: Input Capture Mode Select bits
111 = Input capture functions as interrupt pin only when device is in Sleep or Idle mode
(Rising edge detect only, all other control bits are not applicable).
110 = Unused (module 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> bits do not control interrupt generation for this mode).
000 = Input capture module turned off
DS70291E-page 204
© 2011 Microchip Technology Inc.