32-Bit High-Performance Superscalar Processor Data Sheet

80960HA/HD/HT
70 Datasheet
Figure 45. Burst, Pipelined Read Request with Wait States, 8-Bit Bus
ADS
A31:4, SUP,
CT3:0, D/C,
LOCK
W/R
A3:2
BE1
/A1,
WAIT
BLAST
DT/R
DEN
CLKIN
D7:0
Byte 0
D7:0
Byte 1
D7:0
Byte 2
D7:0
Byte 3
D7:0
D’
A21 D 1D 1 D 1
A’
21
D
D’
In-
valid
Valid
In-
valid
BE0/A0
D31:0,
A3:2 = 00, 01, 10, or 11
Valid
In-
valid
A1:0 = 00 A1:0 = 01 A1:0 = 10 A1:0 = 11
Valid
Valid
In-
valid
DP3:0
1. Non-pipelined request concludes, pipelined reads begin
2. Pipelined reads conclude, non-pipelined requests begin
PCHK
2
Burst
Bus
Width
Odd
Parity
N
XDA
N
WDD
N
WAD
N
RDD
29
28 2124 23-22 20 12-819-16 15-14 7-6 4-0
Enabled
1
ON
1
X
xxxx
8-Bit
X
x
Enabled
1
X
xx
X
xxxxx
1
01
X
x
2
00010
Function
Bit
Value
External
Ready
Control
Pipe-
Lining Parity Enable
N
RAD
00
NOTE: Bits 31-30, 27-25, 13, and 5 are reserved.
PMCON
1