IDT71216S12PF Integrated Device Technology, IDT71216S12PF Datasheet - Page 5

• Manufacturer Part Number: IDT71216S12PF
• Description: BiCMOS StaticRAM 240K (16K x 15-BIT) CACHE-TAG RAM For PowerPCO and RISC Processors
• Manufacturer: Integrated Device Technology

IDT71216
BiCMOS 16K x 15 CACHE-TAG RAM
TRUTH TABLES (CONT.)
MATCH FUNCTION
NOTES:
1. "H" = V
2. M = HIGH if TAG
3.
4. This column represents the stored memory cell data for the given Status bit at the selected address.
TA TA
NOTES:
1. "H" = V
2. M = HIGH if TAG
3.
4. This column represents the stored memory cell data for the given Status bit at the selected address.
5.
6.
7.
CS1
CS1
TAOE
TAOE
H
X
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
PWRDN
PWRDN
CS1
TAIN
TAIN
FUNCTION
is LOW, CS2 is HIGH for this table.
CS2 SFUNC
will be a factor in determining the
is a synchronous input; thus the inputs noted in the table must be applied during a rising CLK edge.
H
H
H
H
H
H
H
X
L
IH
IH
and
and
, "L" = V
, "L" = V
TAIN
TAIN
H
H
H
H
H
H
H
H
H
H
X
L
RESET
RESET
X
X
X
X
X
X
H
L
L
(6)
IL
IN
IL
IN
, "X" = don't care, "–" = unrelated.
, "X" = don't care, "–" = unrelated.
(1, 2, 3, 5)
equals the memory contents at that address; M = LOW if TAG
OET
OET WET
equals the memory contents at that address; M = LOW if TAG
are HIGH for this table. TT1, TAH,
are HIGH for this table. CLK and
X
X
X
X
X
X
X
H
H
H
H
L
OET
OET WET
H
H
H
H
X
X
X
X
L
WET WES
(1, 2, 3)
X
X
X
X
X
X
X
H
H
H
H
L
WET WES
X
X
X
H
X
H
H
H
L
WES
X
X
X
X
X
X
X
H
H
H
H
L
WES
TA
X
X
X
X
X
H
H
H
L
TAH
output in all cases except when TAH is HIGH and there is a valid MATCH. In that case,
H
X
X
X
X
X
X
X
L
L
L
L
TAG
TAG
TAG
D
TAG
Hi-Z
Hi-Z
D
TT1 SFUNC
OUT
X
X
X
X
X
X
X
X
H
X
X
–
–
L
IN
IN
IN
IN
OES
TAOE
VLD
H
X
X
X
X
X
X
are "X".
L
L
L
L
L
D
H
–
–
–
–
–
L
X
,
IN
TAIN
(4)
DTY
,
VLD
OES
D
D
–
–
–
–
–
–
–
–
14.3
X
X
X
X
X
X
H
H
H
X
L
IN
IN
(4)
(4)
, and CLK are "X".
DTY
WT
D
D
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
IN
IN
(4)
(4)
IN
IN
does not equal the memory contents at that address.
does not equal the memory contents at that address.
WT
MATCH
D
D
X
X
X
X
X
X
H
X
X
X
L
Hi-Z
Hi-Z
IN
OUT
M
M
(4)
L
L
L
L
TAG
TAG
TAG
TAG
D
TAG MATCH
D
OUT
–
–
–
–
–
–
IN
IN
IN
IN
IN
Invalid Data - Dedicated Status Bits
M
M
M
M
–
X
L
L
L
X
L
X
Match - Dedicated Status Bits
Match - Generic Status Bits
COMMERCIAL TEMPERATURE RANGE
Hi-Z
TA TA
Write Status Bits
M
M
M
M
H
H
H
H
H
H
L
OPERATION
Read Tag I/O
Write Tag I/O
Deselected
Deselected
Selected
External
Force
Write Through
OPERATION
TA
Write Status
Invalid TAG
Read TAG
Write TAG
Compare
Compare
Compare
Compare
TA
Disabled
will be LOW(Valid).
TA
TA
HIGH
Input
3067 tbl 04
3067 tbl 05
(7)
5