3 Peripheral Multiplexing on I/O Lines

Peripheral multiplexing on I/O lines is fully compatible: each SAM9x5 peripheral has an equivalent on SAM9X60.

SAM9X60 features new peripherals on existing lines, and new peripherals on new lines.

Table 3-1. Peripheral Enhancements and Additions

PIO Line

SAM9x5 Function

SAM9x5

Peripheral ID

SAM9X60 Function

SAM9X60

Peripheral ID

USART05FLEXCOM0(1)5
USART16FLEXCOM1(1)6
USART27FLEXCOM2(1)7
SPI013FLEXCOM4(1)(2)13
SPI114FLEXCOM5(1)(2)14
TWI09FLEXCOM6(3)9
TWI211FLEXCOM8(3)11
PA24-27CLASSD42
PB19-23I2SMCC34
PB19-24QSPI35
PB19-20FLEXCOM11(3)32
PB21-22FLEXCOM12(3)33
TWI110FLEXCOM7(3)10
UART015FLEXCOM9(3)15
UART116FLEXCOM10(3)16
PC22-26, PC30FLEXCOM3(1)8
Note:
  1. This fully-featured FLEXCOM enables USART, SPI and TWI.
  2. Other IOSETs are available for some signals.
  3. This FLEXCOM reduced to two wires enables UART and TWI.