AT91SAM7S64C-AU 查看數據表（PDF） - Atmel Corporation

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AT91SAM7S64C-AU

AT91SAM ARM-based Flash MCU

Atmel Corporation 

10.8

Serial Synchronous Controller

 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

10.9

Timer Counter

 Three 16-bit Timer Counter Channels

 Two output compare or one input capture per channel (except for SAM7S32/16 which have only two

channels connected to the PIO)

 Wide range of functions including:

 Frequency measurement

 Event counting

 Interval measurement

 Pulse generation

 Delay timing

 Pulse Width Modulation

 Up/down capabilities

 Each channel is user-configurable and contains:

 Three external clock inputs (The SAM7S32/16 have one)

 Five internal clock inputs, as defined in Table 10-5

Table 10-5. Timer Counter Clocks Assignment

TC Clock Input

Clock

TIMER_CLOCK1

MCK/2

TIMER_CLOCK2

MCK/8

TIMER_CLOCK3

MCK/32

TIMER_CLOCK4

MCK/128

TIMER_CLOCK5

MCK/1024

 Two multi-purpose input/output signals

 Two global registers that act on all three TC channels

10.10 PWM Controller

 Four channels, one 16-bit counter per channel

 Common clock generator, providing thirteen different clocks

 One Modulo n counter providing eleven clocks

 Two independent linear dividers working on modulo n counter outputs

 Independent channel programming

 Independent enable/disable commands

 Independent clock selection

 Independent period and duty cycle, with double buffering

 Programmable selection of the output waveform polarity

SAM7S Series [DATASHEET] 38

6175M–ATARM–26-Oct-12

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