Configuration
13
3.3
Boot Configuration (SW0)
The boot configuration is determined using the SW0 switch.
Tab. 3-3
DIL Switch SW0 for Boot Configuration
3.4
Reset Switch (SW3)
Results in a reset of the ES1651.1-B Carrier Board, but not a VMebus reset.
DIL switch
Meaning
Presetting
1
Flash enable – determines whether the
MPC555 Flash memory is activated or deac-
tivated after a reset.
OFF: Flash disabled – the system is booted
from the external memory
ON: Flash enabled
ON
2
Determines the base address of the
MPC555-internal memory space
OFF: 0x0000 0000
ON: 0x0100 0000
OFF
3
Boot port size
OFF: 32-bit port
ON: 16-bit port
OFF
4
Hard reset configuration word
OFF: Configuration word is read by external
data bus
ON: The internal configuration word is used
OFF
5,6
Source for boot code
OFF, OFF: Internal flash memory
OFF, ON: External SRAM
ON, OFF: Dual-Ported RAM
ON, ON: External Flash memory
OFF, OFF
Содержание ES1651.1-B
Страница 1: ...ES1651 1 B Carrier Board User s Guide ...
Страница 10: ...Hardware Features 10 ...
Страница 24: ...Installing I O Modules 24 ...
Страница 28: ...Pin Assignments and Display Elements 28 ...
Страница 32: ...ETAS Contact Addresses 32 ...