AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 38

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

10.8
10.9
10.10 PWM Controller
Serial Synchronous Controller
Timer Counter
Table 10-5. Timer Counter Clocks Assignment
TC Clock Input
TIMER_CLOCK1
TIMER_CLOCK2
TIMER_CLOCK3
TIMER_CLOCK4
TIMER_CLOCK5
Provides serial synchronous communication links used in audio and telecom applications
Contains an independent receiver and transmitter and a common clock divider
Offers a configurable frame sync and data length
Receiver and transmitter can be programmed to start automatically or on detection of different event on the frame
sync signal
Receiver and transmitter include a data signal, a clock signal and a frame synchronization signal
Three 16-bit Timer Counter Channels
Wide range of functions including:
Each channel is user-configurable and contains:
Four channels, one 16-bit counter per channel
Common clock generator, providing thirteen different clocks
Independent channel programming
Two output compare or one input capture per channel (except for SAM7S32/16 which have only two
channels connected to the PIO)
Frequency measurement
Event counting
Interval measurement
Pulse generation
Delay timing
Pulse Width Modulation
Up/down capabilities
Three external clock inputs (The SAM7S32/16 have one)
Five internal clock inputs, as defined in
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
Independent enable/disable commands
Independent clock selection
Independent period and duty cycle, with double buffering
Programmable selection of the output waveform polarity
Clock
MCK/2
MCK/8
MCK/32
MCK/128
MCK/1024
Table 10-5
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
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