Motorola MPC564EVB User Manual download pdf (Page 47)

Chapter 2. Initialization and Setup 2-9

MPC564EVB Jumper and Switch Setup

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

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

Table 2-3. CONFIG_SW

Switch Name MPC563/564

Function

1CFG_ENRST_CONF

Enable External Config: This bit

enables the external reset config

0 = Internal Reset Config Word se-

lected

1 = External Reset Config Word se-

lected (default)

2CFG1 BDIS

Data Bus 3/Boot Dis: This bit en-

ables booting from external flash

memory

0 = Boot from internal memory (de-

fault)

1 = Boot from external flash

3 CFG2 ETRE

This switch controls the Exception

Table Relocation feature

0 = Exception table relocation is off

(default)

1 = Exception table relocation is on

4 CFG3 EN_COMP

This switch enables Compression

Mode

0 = “Decompression ON” mode is dis-

abled (default)

1 = “Decompression ON” mode is en-

abled

5 CFG4 EXC_COMP

This switch controls whether Ex-

ception vector code is com-

pressed

0 = MPC564 assumes that the excep-

tion routines are non-compressed

(default)

1 = MPC564 assumes that all excep-

tion routines are compressed

6CFG5 DME

This switch enables Dual Map-

ping

0 = Dual Mapping disabled (default)

1 = Dual Mapping enabled

7 EPEE EPEE

This pin enables erasing and pro-

gramming of the internal MPC566

flash

0 = Internal Flash P/E disabled

1 = Internal Flash P/E enabled (de-

fault)

8 B0EPEE B0EPEE

This switch enables programming

or erasing of BLock 0 the internal

flash

0 =P/E of Block 0 disabled

1 = P/E of Block 0 enabled (default)

Frees

cale Semiconductor,

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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