at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 313

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at91rm3400

Manufacturer Part Number
at91rm3400
Description
Atmel Advanced At91 Arm Microcontroller
Manufacturer
ATMEL Corporation
Datasheet

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Pin Name List
Product Dependencies
I/O Lines
Power
Management
Interrupt
1790A–ATARM–11/03
Table 55. I/O Lines Description
The pins used for interfacing the compliant external devices may be multiplexed with PIO
lines.
Before using the SSC receiver, the PIO controller must be configured to dedicate the SSC
receiver I/O lines to the SSC peripheral mode.
Before using the SSC transmitter, the PIO controller must be configured to dedicate the SSC
transmitter I/O lines to the SSC peripheral mode.
The SSC is not continuously clocked. The SSC interface may be clocked through the Power
Management Controller (PMC), therefore the programmer must first configure the PMC to
enable the SSC clock.
The SSC interface has an interrupt line connected to the Advanced Interrupt Controller (AIC).
Handling interrupts requires programming the AIC before configuring the SSC.
All SSC interrupts can be enabled/disabled configuring the SSC Interrupt mask register. Each
pending and unmasked SSC interrupt will assert the SSC interrupt line. The SSC interrupt ser-
vice routine can get the interrupt origin by reading the SSC interrupt status register.
Pin Name
RF
RK
RD
TF
TK
TD
Pin Description
Receiver Frame Synchro
Receiver Clock
Receiver Data
Transmitter Frame Synchro
Transmitter Clock
Transmitter Data
AT91RM3400
Input/Output
Input/Output
Input/Output
Input/Output
Output
Type
Input
313

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