AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 496

• 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

34.6.9
Register Name:
Access Type:
• CPRE: Channel Pre-scaler
• CALG: Channel Alignment
0 = The period is left aligned.
1 = The period is center aligned.
• CPOL: Channel Polarity
0 = The output waveform starts at a low level.
1 = The output waveform starts at a high level.
• CPD: Channel Update Period
0 = Writing to the PWM_CUPDx will modify the duty cycle at the next period start event.
1 = Writing to the PWM_CUPDx will modify the period at the next period start event.
0
0
0
0
0
0
0
0
1
1
1
1
1
31
23
15
–
–
–
7
–
PWM Channel Mode Register
0
0
0
0
1
1
1
1
0
0
0
0
1
30
22
14
–
–
–
6
–
PWM_CMR[0..X-1]
Read/Write
CPRE
Other
0
0
1
1
0
0
1
1
0
0
1
1
0
29
21
13
–
–
–
5
–
0
1
0
1
0
1
0
1
0
1
0
1
0
28
20
12
–
–
–
4
–
MCK
MCK/2
MCK/4
MCK/8
MCK/16
MCK/32
MCK/64
MCK/128
MCK/256
MCK/512
MCK/1024
CLKA
CLKB
Reserved
27
19
11
–
–
–
3
Channel Pre-scaler
CPD
26
18
10
–
–
2
SAM7S Series [DATASHEET]
CPRE
CPOL
6175M–ATARM–26-Oct-12
25
17
–
–
9
1
CALG
24
16
–
–
8
0
496