MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 200

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4.6.4 BBC Module Configuration Register (BBCMCR)
BBCMCR — BBC Module Configuration Register
MPC555
USER’S MANUAL
RESET:
Bit(s)
SET:
16:17
RESERVED
RE-
NOTES:
MSB
16
18
19
20
21
22
0
0
0
1. Reset value is taken from the indicated bit of the reset configuration word.
2. Available only on the MPC556.
EN_COMP
17
0
/
COMP
OERC
1
0
Name
ETRE
EXC_
MPC556
BE
—
BE
18
0
2
0
Reserved
Burst enable
0 = BBC does not request burst accesses
1 = BBC requests burst accesses
Exception table relocation enable
0 = Exception table relocation is off — the BBC does not map exception addresses
1 = Exception table relocation is on — the BBC maps exception addresses to a branch instruction
Other exceptions relocation control.
0 = All exceptions except reset are mapped to the internal memory base address.
1 = All exceptions except reset are mapped to the internal memory base address + 32 Kbytes.
Enable COMPression – This bit enables the operation of the MPC556 in "Compression ON"
mode. The default state is disabled. This bit is read only.
0 = "Decompression ON" mode is disabled. The MPC556 operates only in "Decompression OFF"
1 = "Decompression ON" mode is enabled. The MPC556 may operates with both "Decompres-
The bit value is determined by reset configuration word, bit #21.
Exception Compression – This bit determines the operation of the MPC556 with exceptions. If
this bit is set, the MPC556 assumes that the all exception routines code is compressed; other-
wise it is assumed that all exception routines code is not compressed. The reset value is deter-
mined by reset configuration word bit #22.
0 = The MPC556 assumes that exception routines are non-compressed
1 = The MPC556 assumes that ALL exception routines are compressed.
This bit effects only when EN_COMP bit is set.
ID[19]
ETRE OERC
19
3
0
table. Refer to
mode.
sion ON" and "Decompression OFF" modes.
1
20
Table 4-8 BBCMCR Bit Descriptions
0
4
0
COMP
EN_
5
0
21
0
4.5 Exception Table
2
Rev. 15 October 2000
COMP
6
0
EXC_
BURST BUFFER
22
0
RESERVED
2
7
0
DECOMP
_SC_EN
23
0
8
0
2
Relocation.
Description
24
0
9
0
25
0
10
0
26
0
11
0
RESERVED
27
0
12
0
28
0
13
0
29
0
MOTOROLA
SPR 560
14
0
30
0
LSB
4-24
15
0
31
0