172
1745D–ATARM–04-Nov-05
AT91M55800A
19.5.4 TC Channel Mode Register: Capture Mode
Register Name: TC_CMR
Access Type: Read/Write
Reset State: 0
Offset: 0x04
• TCCLKS: Clock Selection
• CLKI: Clock Invert (Code Label TC_CLKI)
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 (Code Label TC_LDBSTOP)
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 (Code Label TC_LDBDIS)
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 Code Label: TC_CLKS
0 0 0 MCK/2 TC_CLKS_MCK2
0 0 1 MCK/8 TC_CLKS_MCK8
0 1 0 MCK/32 TC_CLKS_MCK32
0 1 1 MCK/128 TC_CLKS_MCK128
1 0 0 MCK/1024 TC_CLKS_MCK1024
1 0 1 XC0 TC_CLKS_XC0
1 1 0 XC1 TC_CLKS_XC1
1 1 1 XC2 TC_CLKS_XC2
BURST Selected BURST Code Label: TC_BURST
0 0 The clock is not gated by an external signal. TC_BURST_NONE
0 1 XC0 is ANDed with the selected clock. TC_BURST_XC0
1 0 XC1 is ANDed with the selected clock. TC_BURST_XC1
1 1 XC2 is ANDed with the selected clock. TC_BURST_XC2