Datasheet

© 2007-2012 Microchip Technology Inc. DS70292G-page 197
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
REGISTER 13-2: TxCON: TIMER CONTROL REGISTER (x = 3 OR 5)
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
TON
(2)
—TSIDL
(1)
— — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-0 U-0
— TGATE
(2)
TCKPS<1:0>
(2)
— —TCS
(2)
—
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 TON: Timery On bit
(2)
1 = Starts 16-bit Timerx
0 = Stops 16-bit Timerx
bit 14 Unimplemented: Read as ‘0’
bit 13 TSIDL: Stop in Idle Mode bit
(1)
1 = Discontinue timer operation when device enters Idle mode
0 = Continue timer operation in Idle mode
bit 12-7 Unimplemented: Read as ‘0’
bit 6 TGATE: Timer
x Gated Time Accumulation Enable bit
(2)
When TCS = 1:
This bit is ignored.
When TCS =
0:
1 = Gated time accumulation enabled
0 = Gated time accumulation disabled
bit 5-4 TCKPS<1:0>: Timerx Input Clock Prescale Select bits
(2)
11 = 1:256 prescale value
10 = 1:64 prescale value
01 = 1:8 prescale value
00 = 1:1 prescale value
bit 3-2 Unimplemented: Read as ‘0’
bit 1 TCS: Timer
x Clock Source Select bit
(2)
1 = External clock from TxCK pin
0 = Internal clock (FOSC/2)
bit 0 Unimplemented: Read as ‘0’
Note 1: When 32-bit timer operation is enabled (T32 = 1) in the Timer Control register (TxCON<3>), the TSIDL bit
must be cleared to operate the 32-bit timer in Idle mode.
2: When the 32-bit timer operation is enabled (T32 = 1) in the Timer Control register (TxCON<3>), these bits
have no effect.