at91sam7l128 ATMEL Corporation, at91sam7l128 Datasheet - Page 42

• Manufacturer Part Number: at91sam7l128
• Description: At91 Arm Thumb-based Microcontroller
• Manufacturer: ATMEL Corporation

10.10 Timer Counter
10.11 PWM Controller
42
AT91SAM7L128/64 Preliminary
Table 10-5.
TC Clock input
• RS485 with driver control signal
• ISO7816, T = 0 or T = 1 Protocols for interfacing with smart cards
• IrDA modulation and demodulation
• Test Modes
• Three 16-bit Timer Counter Channels
• Wide range of functions including:
• Each channel is user-configurable and contains:
• Five internal clock inputs, as defined in
• Four channels, one 16-bit counter per channel
• Common clock generator, providing thirteen different clocks
– Multi-drop Mode with address generation and detection
– Optional Manchester Encoding
– NACK handling, error counter with repetition and iteration limit
– Communication at up to 115.2 Kbps
– Remote Loopback, Local Loopback, Automatic Echo
– Three output compare or two input capture
– Frequency measurement
– Event counting
– Interval measurement
– Pulse generation
– Delay timing
– Pulse Width Modulation
– Up/down capabilities
– Three external clock inputs
– Two multi-purpose input/output signals
– Two global registers that act on all three TC channels
– One Modulo n counter providing eleven clocks
– Two independent linear dividers working on modulo n counter outputs
Timer Counter Clock Assignment
TIMER_CLOCK1
TIMER_CLOCK2
TIMER_CLOCK3
TIMER_CLOCK4
TIMER_CLOCK5
Table 10-5
Clock
MCK/1024
MCK/128
MCK/32
MCK/2
MCK/8
6257AS–ATARM–28-Feb-08