User`s manual

18
Chapter 7. Modes
This RDK supports the 3 CPU modes: Single Chip Mode, Boot Mode and USB Boot Mode. These modes are selected
by SW5 MD0 and MD1 pins. Placing the switch in the ‘On’ position sets the value to a logic ‘0’, and the ‘Off’ position
sets the value to a logic ‘1’. The base configurations should only be set when the RDK is powered off.
Mode No. MD1 (1) MD0 (2)
Single Chip Mode 1 (OFF) 1 (OFF)
UART 0 Boot Mode 0 (ON) 1 (OFF)
USB Boot Mode 1 (OFF) 0 (ON)
Do Not Use 0 (ON) 0 (ON)
Table 7-1: MCU Operating Modes Table
The RDK can also be configured to run in either Big-Endian or Little-Endian memory configuration mode.
Memory Mode MDE (3)
Little Endian 0 (ON)
Big Endian 1 (OFF)
Table 7-2: Endian Order Selection Table
The RDK can also be placed into either Debug Mode or Run Mode via switch 4 on SW5. Placing the switch in the ‘OFF’
position selects Debug mode, the ‘ON’ position selects the default Run mode.
Debug Mode EMLE (4)
Debug 0 (ON)
Run (Default) 1 (OFF)
Table 7-3: Debug/Run Mode Selection Table
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