Programmer’s Model
MPC5200B Users Guide, Rev. 1
Freescale Semiconductor 9-21
9.7.1.6 Chip Select Deadcycle Control Register—MBAR + 0x032C
28 CW0 Chip Select 0 Cache Wrap capable, set if peripheral burst can perform PPC cache wrap. This
bit setting only applies in Large Flash or MOST Graphics Mode.
29 SLB0 Chip Select 0 Short/Long Burst, 0 for Short Burst only, 1 for Long Burst capable. Short burst
is 8-bytes, used for Instruction fetches, and CDWF cache line bursts on XLB if cache wrap
not capable. Long Burst capable means that peripheral can do 32-byte burst which hardware
will generate for cache line aligned XLB bursts (and CDWF if peripheral tagged as cache
wrap capable also).
This bit setting only applies in Large Flash or MOST Graphics Mode.
30 — Reserved
31 BRE0 Chi p Select 0 Burst Read Enable, 1 to enable peripheral bursting for given chip select. Must
be set to enable any Bursting reads.
This bit setting only applies in Large Flash or MOST Graphics Mode.
Note:
1. CDWF is defined as "critical doubleword word first".
2. The bits for Chip Select 0 (CS0) control CS Boot too.
3. With a clock ratio 1:1:1 (66:66:66 MHz) it is not possible to burst in Large Flash mode.

Table9-12. Chip Select Deadcycle Control Register

msb 012345678 9 101112131415
RReserved DC7 Reser ved DC6 Reserved DC5 Reserved DC4
W
RESET:001100110 0 1 100 1 1
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 lsb
RReserved DC3 Reser ved DC2 Reserved DC1 Reserved DC0
W
RESET:001100110 0 1 100 1 1
Bits Name Description
0:1 — Reserved
2:3 DC7 Deadcycles can be specified as 0 to 3. Dead cycles will be added to the end of Chip Select
7 read access and will occur in addition to any cycles which may already exist. These cycles
are to provide peripheral additional time to tri-state it's bus after a read operation. This is for
all access types.
4:5 — Reserved
6:7 DC6 Deadcycles can be specified as 0 to 3. Dead cycles will be added to the end of Chip Select
6 read access and will occur in addition to any cycles which may already exist. These cycles
are to provide peripheral additional time to tri-state it's bus after a read operation. This is for
all access types.
8:9 — Reserved
10:11 DC5 Deadcycles can be specified as 0 to 3. Dead cycles will be added to the end of Chip Select
5 read access and will occur in addition to any cycles which may already exist. These cycles
are to provide peripheral additional time to tri-state it's bus after a read operation. This is for
all access types.
Bits Name Description