Datasheet

© 2007-2012 Microchip Technology Inc. DS70292G-page 191
dsPIC33FJ32GP302/304, dsPIC33FJ64GPX02/X04, AND dsPIC33FJ128GPX02/X04
12.2 Timer1 Control Register
REGISTER 12-1: T1CON: TIMER1 CONTROL REGISTER
R/W-0 U-0 R/W-0 U-0 U-0 U-0 U-0 U-0
TON —TSIDL— — — — —
bit 15 bit 8
U-0 R/W-0 R/W-0 R/W-0 U-0 R/W-0 R/W-0 U-0
— TGATE TCKPS<1:0> — TSYNC TCS —
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: Timer1 On bit
1 = Starts 16-bit Timer1
0 = Stops 16-bit Timer1
bit 14 Unimplemented: Read as ‘0’
bit 13 TSIDL: Stop in Idle Mode bit
1 = Discontinue module operation when device enters Idle mode
0 = Continue module operation in Idle mode
bit 12-7 Unimplemented: Read as ‘0’
bit 6 TGATE: Timer1 Gated Time Accumulation Enable bit
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>: Timer1 Input Clock Prescale Select bits
11 = 1:256
10 = 1:64
01 = 1:8
00 = 1:1
bit 3 Unimplemented: Read as ‘0’
bit 2 TSYNC: Timer1 External Clock Input Synchronization Select bit
When TCS =
1:
1 = Synchronize external clock input
0 = Do not synchronize external clock input
When TCS =
0:
This bit is ignored.
bit 1 TCS: Timer1 Clock Source Select bit
1 = External clock from pin T1CK (on the rising edge)
0 = Internal clock (F
CY)
bit 0 Unimplemented: Read as ‘0’