4 tc channel mode register: capture mode – Rainbow Electronics AT91CAP9S250A User Manual
Page 667
667
6264A–CAP–21-May-07
AT91CAP9S500A/AT91CAP9S250A
38.6.4
TC Channel Mode Register: Capture Mode
Register Name:
TC_CMR
Access Type:
Read/Write
• TCCLKS: Clock Selection
• CLKI: Clock Invert
0 = Counter is incremented on rising edge of the clock.
1 = Counter is incremented on falling edge of the clock.
• BURST: Burst Signal Selection
• LDBSTOP: Counter Clock Stopped with RB Loading
0 = Counter clock is not stopped when RB loading occurs.
1 = Counter clock is stopped when RB loading occurs.
• LDBDIS: Counter Clock Disable with RB Loading
0 = Counter clock is not disabled when RB loading occurs.
1 = Counter clock is disabled when RB loading occurs.
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
LDRB
LDRA
15
14
13
12
11
10
9
8
WAVE = 0
CPCTRG
–
–
–
ABETRG
ETRGEDG
7
6
5
4
3
2
1
0
LDBDIS
LDBSTOP
BURST
CLKI
TCCLKS
TCCLKS Clock
Selected
0
0
0
TIMER_CLOCK1
0
0
1
TIMER_CLOCK2
0
1
0
TIMER_CLOCK3
0
1
1
TIMER_CLOCK4
1
0
0
TIMER_CLOCK5
1
0
1
XC0
1
1
0
XC1
1
1
1
XC2
BURST
0
0
The clock is not gated by an external signal.
0
1
XC0 is ANDed with the selected clock.
1
0
XC1 is ANDed with the selected clock.
1
1
XC2 is ANDed with the selected clock.