3.10.5.1.3 PRR1 – Power Reduction Register 1

This register allows a fine-grained clock control. Clocks for various I/O modules can be turned off by setting the corresponding flag to “high”. Therefore, the power consumption of these modules is reduced when they are not needed. The modules are disabled by default and they must be enabled only if required.
Name: PRR1
Offset: 0x002
Reset: 0x00

Bit 76543210 
 PRT5PRT4PRT3PRT2PRT1 
Access RRRR/WR/WR/WR/WR/W 
Reset 00011111 

Bit 7 –  Reserved Bit

This bit is reserved and reads as ‘0’.

Bit 6 –  Reserved Bit

This bit is reserved and reads as ‘0’.

Bit 5 –  Reserved Bit

This bit is reserved and reads as ‘0’.

Bit 4 – PRT5 Power Reduction Timer 5

Writing a logic ‘1’ to this bit stops the clock to the module and shuts down Timer 5. When waking up, the module must be reinitialized to ensure proper operation.

Bit 3 – PRT4 Power Reduction Timer 4

Writing a logic ‘1’ to this bit stops the clock to the module and shuts down Timer 4. When waking up, the module must be reinitialized to ensure proper operation.

Bit 2 – PRT3 Power Reduction Timer 3

Writing a logic ‘1’ to this bit stops the clock to the module and shuts down Timer 3. When waking up, the module must be reinitialized to ensure proper operation.

Bit 1 – PRT2 Power Reduction Timer 2

Writing a logic ‘1’ to this bit stops the clock to the module and shuts down Timer 2. When waking up, the module must be reinitialized to ensure proper operation.

Bit 0 – PRT1 Power Reduction Timer 1

Writing a logic ‘1’ to this bit stops the clock to the module and shuts down Timer 1. When waking up, the module must be reinitialized to ensure proper operation.