e200z1 Core (Z1)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
10-22
Freescale Semiconductor
Preliminary
The MAS4 register is shown in
.
Table 10-8. MAS3 - RPN and Access Control
Bit
1
1
Numbers shown in parentheses are the 64-bit register bit numbers defined in the Power
Architecture Book Specification.
Name
Comments, or Function when Set
0:19
[32:51]
RPN
Real page number [0:19]
Only bits that correspond to a page number are valid. Bits that
represent offsets within a page are ignored and should be zero.
20:21
[52:53]
—
Reserved
2
2
These bits are not implemented, will be read as zero, and writes are ignored.
22:25
[54:57]
U0-U3
User bits [0-3]
26:31
[58:63]
PERMIS
Permission bits (UX, SX, UW, SW, UR, SR)
0
TLB
SELD (01)
0
TIDSELD
0
TSI
Z
ED
0
VLED
WD
ID
MD
GD
ED
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
SPR - 628; Read/ Write; Reset - Unaffected
Figure 10-12. MMU Assist Register 4 (MAS4)
Table 10-9. MAS4 - Hardware Replacement Assist Configuration Register
Bit
1
Name
Comments, or Function when Set
0:1
[32:33]
—
Reserved
2
2:3
[34:35]
TLBSELD
Default TLB selected: 01=TLBCAM (ignored by Zen, should be
written to 01 for future compatibility)
4:13
[36:45]
—
Reserved
14:15
[46:47]
TIDSELD
Default PID# to load TID from
00 - PID0
01 - Reserved, do not use
10 - Reserved, do not use
11=TIDZ (8’h00)) (Use all zeros, the globally shared value)
16:19
[48:51]
—
Reserved
20:23
[52:55]
TSIZED
Default TSIZE value