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configuration options are only presented to the data bus during Hard Reset if enabled by CONFIG
switch position 1. Note that MAP switch also has positions (5 and 8) that are part of the Reset
Configuration Word. All other RCW options can be located on the RW test pads, see RW options
for description of how to apply. The Reset Configuration Word options are all defaulted to logic 0
when the CONFIG Switches are in the OFF position. For more information on the MPC564 Reset
Configuration Word refer to the Reset Chapter in the MPC564 users manual. Five bits are available
on CONFIG_SW (see Table 2-3).I
Switch
Name
MPC563/564
1
CFG_EN
RST_CONF
2
CFG1
3
CFG2
4
CFG3
EN_COMP
5
CFG4
EXC_COMP
6
CFG5
7
EPEE
8
B0EPEE
Notes:
1) Position 1 should be ON at all times until the MPC564 internal flash RCW word is pro-
grammed. This switch will cause the external value RCW to override the internal flash value of
the RCW word.
2) Position 7 and 8 must be enabled for MPC564 internal flash erase or programming operations.
3) All other external RCW bits are provided with the RW hardware options.
RW0 – 30: External Reset Configuration Word (RCW) Options
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Table 2-3. CONFIG_SW
Function
Enable External Config: This bit
enables the external reset config
Data Bus 3/Boot Dis: This bit en-
BDIS
ables booting from external flash
This switch controls the Exception
ETRE
Table Relocation feature
This switch enables Compression
This switch controls whether Ex-
ception vector code is com-
This switch enables Dual Map-
DME
This pin enables erasing and pro-
EPEE
gramming of the internal MPC566
This switch enables programming
B0EPEE
or erasing of BLock 0 the internal
Chapter 2. Initialization and Setup
MPC564EVB Jumper and Switch Setup
Function
0 = Internal Reset Config Word se-
1 = External Reset Config Word se-
0 = Boot from internal memory (de-
memory
0 = Exception table relocation is off
1 = Exception table relocation is on
0 = "Decompression ON" mode is dis-
Mode
1 = "Decompression ON" mode is en-
0 = MPC564 assumes that the excep-
tion routines are non-compressed
pressed
1 = MPC564 assumes that all excep-
0 = Dual Mapping disabled (default)
ping
0 = Internal Flash P/E disabled (de-
flash
0 =P/E of Block 0 disabled (default)
flash
lected
lected (default)
fault)
1 = Boot from external flash
(default)
abled (default)
abled
(default)
tion routines are compressed
1 = Dual Mapping enabled
fault)
1 = Internal Flash P/E enabled
1 = P/E of Block 0 enabled
2-9
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