AT91SAM7XC256B-AU Atmel, AT91SAM7XC256B-AU Datasheet - Page 38

• Manufacturer Part Number: AT91SAM7XC256B-AU
• Description: MCU ARM 256K HS FLASH 100-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7XC256B-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 62
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100LQFP
• Device Core: ARM7TDMI
• Family Name: 91S
• Maximum Speed: 55 MHz
• Operating Supply Voltage: 1.8 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 62
• Interface Type: CAN/Ethernet/SPI/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Processor Series: 91S
• Core: ARM7TDMI
• Data Ram Size: 64 KB
• Maximum Clock Frequency: 55 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

10.11 Timer Counter
10.12 Pulse Width Modulation Controller
38
AT91SAM7XC512/256/128 Preliminary
Table 10-4.
TC Clock input
TIMER_CLOCK1
TIMER_CLOCK2
TIMER_CLOCK3
TIMER_CLOCK4
TIMER_CLOCK5
• 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
• Independent channel programming
– Two output compare or one input capture per channel
– 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
– Independent enable/disable commands
– Independent clock selection
– Independent period and duty cycle, with double buffering
– Programmable selection of the output waveform polarity
– Programmable center or left aligned output waveform
Timer Counter Clocks Assignment
Table 10-4
Clock
MCK/2
MCK/8
MCK/32
MCK/128
MCK/1024
6209DS–ATARM–17-Feb-09