MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 401

• 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

11.8.5 Region Attribute Registers (L2U_RAx)
11.8.6 Global Region Attribute Register
MPC555
USER’S MANUAL
L2U_RAx — L2U Region X Attribute Register
Bit(s)
20:21
22:24
26:31
MSB
8:19
0:7
16
25
0
0
0
RESET:
RESET:
Each region attribute register defines the protection attributes associated with a spe-
cific region protected by the data memory protection unit. There are four registers (x =
0...3), one for each supported region.
The global region attribute register defines the protection attributes associated with the
memory region which is not protected under the four DMPU regions. This register also
provides enable/disable control for the four DMPU regions.
17
/
1
0
0
MPC556
Name
RS
RS
PP
—
—
—
G
18
2
0
0
Reserved
Region size
0000_0000_0000 = 4 Kbytes
0000_0000_0001 = 8 Kbytes
0000_0000_0011 = 16 Kbytes
0000_0000_0111 = 32 Kbytes
0000_0000_1111 = 64 Kbytes
0000_0001_1111 = 128 Kbytes
0000_0011_1111 = 256 Kbytes
0000_0111_1111 = 512 Kbytes
0000_1111_1111 = 1 Mbyte
0001_1111_1111 = 2 Mbytes
0011_1111_1111 = 4 Mbytes
0111_1111_1111 = 8 Mbytes
1111_1111_1111 = 16 Mbytes
Protection bits
00 = No supervisor access, no user access
01 = Supervisor read/write access, no user access
10 = Supervisor read/write access, user read-only access
11 = Supervisor read/write access, user read/write access
Reserved
Guarded attribute
0 = Not guarded from speculative accesses
1 = Guarded from speculative accesses
Reserved
RESERVED
19
3
0
0
Table 11-9 L2U_RAx Bit Descriptions
20
4
0
0
PP
L-BUS TO U-BUS INTERFACE (L2U)
21
5
0
0
Rev. 15 October 2000
22
6
0
0
RESERVED
23
7
0
0
24
8
0
0
Description
25
G
9
0
0
10
26
0
0
11
27
0
0
RS
RESERVED
12
28
0
0
SPR 824 – 827
13
29
0
0
MOTOROLA
14
30
0
0
11-15
LSB
15
31
0
0