E.1.3.4 Sdr1 - Motorola MPC8240 User Manual

Table E-11 lists the BAT area lengths encoded in BAT[BL].

E.1.3.4 SDR1

The format of the SDR1 is shown in Figure E-14.
HTABORG
0
The bits of SDR1 are described in Table E-12.
Bits Name
0–15 HTABORG
16–22 —
23–31 HTABMASK
Table E-11. BAT Area Lengths
BAT Area
Length
128 Kbytes
256 Kbytes
512 Kbytes
1 Mbyte
2 Mbytes
4 Mbytes
8 Mbytes
16 Mbytes
32 Mbytes
64 Mbytes
128 Mbytes
256 Mbytes
15 16
Figure E-14. SDR1 Register Format
Table E-12. SDR1 Bit Settings
The high-order 16 bits of the 32-bit physical address of the page table
Reserved
Mask for page table address
Appendix E. Processor Core Register Summary
BL Encoding
000 0000 0000
000 0000 0001
000 0000 0011
000 0000 0111
000 0000 1111
000 0001 1111
000 0011 1111
000 0111 1111
000 1111 1111
001 1111 1111
011 1111 1111
111 1111 1111
0000 000
22 23
Description
PowerPC Register Set
Reserved
HTABMASK
31
E-17