Microchip Technology Microstick for the 3V PIC24F K-series DM240013-1 DM240013-1 データシート
製品コード
DM240013-1
PIC24F16KL402 FAMILY
DS31037B-page 120
2011 Microchip Technology Inc.
REGISTER 14-1:
T3CON: TIMER3 CONTROL REGISTER
U-0
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
—
bit 15
bit 8
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
U-0
R/W-0
TMR3CS1
TMR3CS0
T3CKPS1
T3CKPS0
T3OSCEN
T3SYNC
—
TMR3ON
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 15-8
Unimplemented:
Read as ‘0’
bit 7-6
TMR3CS<1:0>:
Clock Source Select bits
11
= Low-Power RC Oscillator (LPRC)
10
= External clock source (selected by T3CON<3>)
01
= Instruction clock (F
OSC
/2)
00
= System clock (F
OSC
)
(
)
bit 5-4
T3CKPS<1:0>
: Timer3 Input Clock Prescale Select bits
11
= 1:8 Prescale value
10
= 1:4 Prescale value
01
= 1:2 Prescale value
00
= 1:1 Prescale value
bit 3
T3OSCEN
: Timer Oscillator Enable bit
1
= SOSC (Secondary Oscillator) is used as a clock source
0
= T3CK digital input pin is used as a clock source
bit 2
T3SYNC:
External Clock Input Synchronization Control bit
When TMR3CS<1:0> = 1x:
1
1
= Do not synchronize the external clock input
0
= Synchronize the external clock input
)
When TMR3CS<1:0> = 0x:
This bit is ignored; Timer3 uses the internal clock.
This bit is ignored; Timer3 uses the internal clock.
bit 1
Unimplemented:
Read as ‘0’
bit 0
TMR3ON:
Timer On bit
1
= Enables Timer
0
= Stops Timer
Note 1:
The F
OSC
clock source should not be selected if the timer will be used with the ECCP Capture or Compare
features.
2:
This option must be selected when the timer will be used with ECCP/CCP.