at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 265

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

Figure 20-3. SSC Functional Block Diagram
20.7.1
32059J–12/2010
Peripheral
CLK_SSC
Clock Management
Bus
DMA
Interface
Divider
Clock
User
Interrupt Controller
The transmitter clock can be generated by:
• an external clock received on the TX_CLOCK pin
• the receiver clock
• the internal clock divider
The receiver clock can be generated by:
• an external clock received on the RX_CLOCK pin
• the transmitter clock
• the internal clock divider
Furthermore, the transmitter block can generate an external clock on the TX_CLOCK pin, and
the receiver block can generate an external clock on the RX_CLOCK pin.
This allows the SSC to support many Master and Slave Mode data transfers.
Interrupt Control
TX_FRAME_SYNC
RX_FRAME_SYNC
TX_FRAME_SYNC
RX_FRAME_SYNC
TX_CLOCK Input
RX_CLOCK
TX clock
RX clock
Input
Selector
Selector
Start
TX_DMA
Start
RX_DMA
Load Shift
Load Shift
Transmitter
Transmit Clock
Receive Clock
Controller
Controller
Receiver
Transmit Holding
Receive Holding
Register
Register
Transmit Shift Register
Receive Shift Register
RX clock
TX clock
Holding Register
Holding Register
Transmit Sync
Receive Sync
Clock Output
Clock Output
Frame Sync
Frame Sync
Controller
Controller
Controller
Controller
AT32UC3B
RX_CLOCK
RX_FRAME_SYNC
TX_CLOCK
TX_FRAME_SYNC
RX_DATA
TX_DATA
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