AT91SAM7S32-AI ATMEL [ATMEL Corporation], AT91SAM7S32-AI Datasheet - Page 312

• Manufacturer Part Number: AT91SAM7S32-AI
• Description: AT91 ARM Thumb-based Microcontrollers
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 132. SSC Functional Block Diagram
Clock
Management
312
AT91SAM7S32 Preliminary
APB
MCK
PDC
Interface
Divider
Clock
User
The transmitter clock can be generated by:
•
•
•
The receiver clock can be generated by:
•
•
•
Furthermore, the transmitter block can generate an external clock on the TK I/O pad, and the
receiver block can generate an external clock on the RK I/O pad.
This allows the SSC to support many Master and Slave-mode data transfers.
Interrupt Control
an external clock received on the TK I/O pad
the receiver clock
the internal clock divider
an external clock received on the RK I/O pad
the transmitter clock
the internal clock divider
AIC
TF
RF
RK Input
TX Clock
RF
TF
TK Input
RX clock
Selector
Selector
Start
Start
RX PDC
TX PDC
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
6071A–ATARM–28-Oct-04
TK
RD
TD
RK
RF
TF