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DVR21 数据表(PDF) 160 Page - Microchip Technology

部件名 DVR21
功能描述  16-Bit General Purpose Microcontrollers with 256-Kbyte Flash and 16-Kbyte RAM in Low Pin Count Packages
PDF  416 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

DVR21 数据表(HTML) 160 Page - Microchip Technology

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DS30010118D-page 160
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REGISTER 12-1:
T1CON: TIMER1 CONTROL REGISTER(1)
R/W-0
U-0
R/W-0
U-0
U-0
U-0
R/W-0
R/W-0
TON
—TSIDL
—TECS1
TECS0
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
TCKPS1
TCKPS0
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: Timer1 Stop in Idle Mode bit
1 = Discontinues module operation when device enters Idle mode
0 = Continues module operation in Idle mode
bit 12-10
Unimplemented: Read as ‘0’
bit 9-8
TECS<1:0>: Timer1 Extended Clock Source Select bits (selected when TCS = 1)
11 = Generic timer (TxCK) external input
10 = LPRC Oscillator
01 = T1CK external clock input
00 = SOSC
bit 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 is enabled
0 = Gated time accumulation is 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 = Synchronizes the external clock input
0 = Does not synchronize the external clock input
When TCS = 0:
This bit is ignored.
bit 1
TCS: Timer1 Clock Source Select bit
1 = Extended clock is selected by the timer
0 = Internal clock (FOSC/2)
bit 0
Unimplemented: Read as ‘0’
Note 1:
Changing the value of T1CON while the timer is running (TON = 1) causes the timer prescale counter to
reset and is not recommended.



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