OUTTGL

Data Output Value Toggle

Important: For SAM L11 Non-Secure accesses, read and write accesses (RW*) are allowed only if the security attribution for the corresponding I/O pin is set as Non-Secured in the NONSEC register.

This register allows the user to toggle the drive level of one or more output I/O pins, without doing a read-modify-write operation. Changes in this register will also be reflected in the Data Output Value (OUT), Data Output Value Set (OUTSET) and Data Output Value Clear (OUTCLR) registers.

Tip: The I/O pins are assembled in pin groups (”PORT groups”) with up to 32 pins. Group 0 consists of the PA pins, group 1 is for the PB pins, etc. Each pin group has its own PORT registers, with a 0x80 address spacing. For example, the register address offset for the Data Direction (DIR) register for group 0 (PA00 to PA31) is 0x00, and the register address offset for the DIR register for group 1 (PB00 to PB31) is 0x80.
  0x1C 32 PAC Write-Protection, Mix-Secure 0x00000000  
Parent topic: Register Description

Data Output Value Toggle

Bit  31 30 29 28 27 26 25 24  
  OUTTGL[31:24]  
Access  RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW  
Reset  0 0 0 0 0 0 0 0  
Bit  23 22 21 20 19 18 17 16  
  OUTTGL[23:16]  
Access  RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW  
Reset  0 0 0 0 0 0 0 0  
Bit  15 14 13 12 11 10 9 8  
  OUTTGL[15:8]  
Access  RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW  
Reset  0 0 0 0 0 0 0 0  
Bit  7 6 5 4 3 2 1 0  
  OUTTGL[7:0]  
Access  RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW RW/RW*/RW  
Reset  0 0 0 0 0 0 0 0  

Bits 31:0 – OUTTGL[31:0]: PORT Data Output Value Toggle

PORT Data Output Value Toggle

Writing '0' to a bit has no effect.

Writing '1' to a bit will toggle the corresponding bit in the OUT register, which inverts the output drive level for I/O pins configured as outputs via the Data Direction register (DIR). For pins configured as inputs via Data Direction register (DIR) with pull enabled via the Pull Enable register (PULLEN), these bits will toggle the input pull direction.
ValueDescription
0 The corresponding I/O pin in the PORT group will keep its configuration.
1 The corresponding OUT bit value is toggled.