at91sam9g20-cu ATMEL Corporation, at91sam9g20-cu Datasheet - Page 574

• Manufacturer Part Number: at91sam9g20-cu
• Description: At91 Arm Thumb Microcontrollers
• Manufacturer: ATMEL Corporation

• 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.
• ETRGEDG: External Trigger Edge Selection
• ABETRG: TIOA or TIOB External Trigger Selection
0 = TIOB is used as an external trigger.
1 = TIOA is used as an external trigger.
• CPCTRG: RC Compare Trigger Enable
0 = RC Compare has no effect on the counter and its clock.
1 = RC Compare resets the counter and starts the counter clock.
• WAVE
0 = Capture Mode is enabled.
1 = Capture Mode is disabled (Waveform Mode is enabled).
• LDRA: RA Loading Selection
• LDRB: RB Loading Selection
574
0
0
1
1
0
0
1
1
0
0
1
1
AT91SAM9G20 Preliminary
ETRGEDG
LDRB
LDRA
0
1
0
1
0
1
0
1
0
1
0
1
Edge
none
rising edge of TIOA
falling edge of TIOA
each edge of TIOA
Edge
none
rising edge of TIOA
falling edge of TIOA
each edge of TIOA
none
rising edge
falling edge
each edge
Edge
6384B–ATARM–15-Dec-08