Freescale Semiconductor MPC5200B User Manual
Page 600
XLB Arbiter Registers—MBAR + 0x1F00
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor
16-13
16.2.13
Arbiter Reserved Registers—MBAR + 0x1F00-1F3C, 0x1F74-1FFF
These are reserved registers and should not be accessed.
25:26
—
Reserved
27:31
WINSIZE
Window Size - Defines the size of window. The lower bits of WINBASE are effecttively
ignored/masked from snooping address comparison depending on the value set in this field.
WINSIZE = 00000: Window miss*
WINSIZE = 00001 - 01011: 4KByte (non-mask)
WINSIZE = 01100: 8KByte (1 bit mask)
WINSIZE = 01101: 16KByte (2 bits mask)
WINSIZE = 01110: 32KByte (3 bits mask)
WINSIZE = 01111: 64KByte (4 bits mask)
WINSIZE = 10000: 128KByte (5 bits mask)
WINSIZE = 10001: 256KByte (6 bits mask)
WINSIZE = 10010: 512KByte (7 bits mask)
WINSIZE = 10011: 1MByte (8 bits mask)
WINSIZE = 10100: 2MByte (9 bits mask)
WINSIZE = 10101: 4MByte (10 bits mask)
WINSIZE = 10110: 8MByte (11 bits mask)
WINSIZE = 10111: 16MByte (12 bits mask)
WINSIZE = 11000: 32MByte (13 bits mask)
WINSIZE = 11001: 64MByte (14 bits mask)
WINSIZE = 11010: 128MByte (15 bits mask)
WINSIZE = 11011: 256MByte (16 bits mask)
WINSIZE = 11100: 512MByte (17 bits mask)
WINSIZE = 11101: 1GByte (18 bits mask)
WINSIZE = : 2GByte (19 bits mask)
WINSIZE = 11111: Reserved
Note: *NOTE: Software should always write a non-zero value in this field. Otherwise, the
address comparison does not take effect (treated as a “window miss”).
Table 16-14. Arbiter Reserved Registers
msb 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
Reserved
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31 lsb
R
Reserved
W
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Name
Description
0:31
—
Reserved
Bit
Name
Description