AVR64DB48 CPU registers

The 3 registers of CPU (CPU), from 0x34, with their reset value and every field. The AVR64DB48 has 690 registers in 58 peripherals, one page each.

CPU CPU

CCPConfiguration Change Protection

Address
0x34 I/O 0x34
Reset
0x00
Access
read/write
  1. 7CCP7
  2. 6CCP6
  3. 5CCP5
  4. 4CCP4
  5. 3CCP3
  6. 2CCP2
  7. 1CCP1
  8. 0CCP0
1 field
FieldBitsWhat it does
CCP7:0CCP signature
  • 157 SPM Instruction Protection
  • 216 IO Register Protection

SPStack Pointer

Address
0x3D I/O 0x3D
Reset
0x7FFF
Access
read/write
Size
16-bit

SREGStatus Register

Address
0x3F I/O 0x3F
Reset
0x00
Access
read/write
  1. 7I
  2. 6T
  3. 5H
  4. 4S
  5. 3V
  6. 2N
  7. 1Z
  8. 0C
8 fields
FieldBitsWhat it does
I7Global Interrupt Enable Flag
T6Transfer Bit
H5Half Carry Flag
S4N Exclusive Or V Flag
V3Two's Complement Overflow Flag
N2Negative Flag
Z1Zero Flag
C0Carry Flag