Microchip Technology DV320032 Data Sheet
PIC32MX330/350/370/430/450/470
DS60001185C-page 180
2012-2013 Microchip Technology Inc.
13.2
Control Register
REGISTER 13-1:
T1CON: TYPE A TIMER CONTROL REGISTER
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
U-0
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
—
23:16
U-0
U-0
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
—
—
15:8
R/W-0
U-0
R/W-0
R/W-0
R-0
U-0
U-0
U-0
ON
(1)
—
SIDL
TWDIS
TWIP
—
—
—
7:0
R/W-0
U-0
R/W-0
R/W-0
U-0
R/W-0
R/W-0
U-0
TGATE
—
TCKPS<1:0>
—
TSYNC
TCS
—
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 31-16 Unimplemented: Read as ‘0’
bit 15
bit 15
ON: Timer On bit
(1)
1 = Timer is enabled
0 = Timer is disabled
0 = Timer is disabled
bit 14
Unimplemented: Read as ‘0’
bit 13
SIDL: Stop in Idle Mode bit
1 = Discontinue operation when device enters Idle mode
0 = Continue operation even in Idle mode
1 = Discontinue operation when device enters Idle mode
0 = Continue operation even in Idle mode
bit 12
TWDIS: Asynchronous Timer Write Disable bit
1 = Writes to TMR1 are ignored until pending write operation completes
0 = Back-to-back writes are enabled (Legacy Asynchronous Timer functionality)
1 = Writes to TMR1 are ignored until pending write operation completes
0 = Back-to-back writes are enabled (Legacy Asynchronous Timer functionality)
bit 11
TWIP: Asynchronous Timer Write in Progress bit
In Asynchronous Timer mode:
1 = Asynchronous write to TMR1 register in progress
0 = Asynchronous write to TMR1 register complete
In Synchronous Timer mode:
This bit is read as ‘0’.
In Asynchronous Timer mode:
1 = Asynchronous write to TMR1 register in progress
0 = Asynchronous write to TMR1 register complete
In Synchronous Timer mode:
This bit is read as ‘0’.
bit 10-8
Unimplemented: Read as ‘0’
bit 7
TGATE: Timer Gated Time Accumulation Enable bit
When TCS = 1:
This bit is ignored.
When TCS = 0:
1 = Gated time accumulation is enabled
0 = Gated time accumulation is disabled
When TCS = 1:
This bit is ignored.
When TCS = 0:
1 = Gated time accumulation is enabled
0 = Gated time accumulation is disabled
bit 6
Unimplemented: Read as ‘0’
bit 5-4
TCKPS<1:0>: Timer Input Clock Prescale Select bits
11 = 1:256 prescale value
10 = 1:64 prescale value
01 = 1:8 prescale value
00 = 1:1 prescale value
11 = 1:256 prescale value
10 = 1:64 prescale value
01 = 1:8 prescale value
00 = 1:1 prescale value
bit 3
Unimplemented: Read as ‘0’
Note 1:
When using 1:1 PBCLK divisor, the user’s software should not read/write the peripheral SFRs in the
SYSCLK cycle immediately following the instruction that clears the module’s ON bit.
SYSCLK cycle immediately following the instruction that clears the module’s ON bit.