MU9C RCP Family
Control State Overview
CONTROL STATE OVERVIEW
Table 2: Control State Overview
AC Bus
/W = LOW
PA:AA Scope /W = HIGH
PA:AA Scope
Register Read/Write
(32-bit operations)
xxx xxx 000 011
NOP
n/c
n/c
n/c
n/c
n/c
n/c
n/c
n/a
AS
AS
AS
n/a
AS
AS
RD NFA
RD AR
RD FR
RD DS
RD SR
n/c
n/c
n/c
n/c
n/c
n/c
n/c
NFD
S
S
S
HPD/S
S
S
xxx nnn 000 100
xxx nnn 000 110
xxx nnn 001 000
xxx xxx 000 111
xxx nnn 000 101
xxx nnn 001 001
WR AR {MRnnn}
WR FR {MRnnn}
WR DS {MRnnn}
RESERVED
WRs CR {MRnnn}
WRs MRnnn
RDs CR
RDs MRnnn
Memory Read/Write
(32-bit operations)
A(12:0) / A(11:0) [/AV = LOW] WRs aaa
aaa
AS
RDs aaa
aaa
S
xxx nnn 000 000
xxx nnn 100 110
xxx nnn 100 111
xxx nnn 000 010
xxx nnn 000 001
WRs [AR] {MRnnn}
aaa
aaa
aaa
HPMA
NFA
AS
AS
AS
HPD
NFD
RDs [AR]
RDs [AR]+
RDs [AR]-
RDs [HPM]
RDs [HPM]; NEXT
aaa
aaa
aaa
HPMA
HPMA
S
S
S
HPD
HPD
WRs [AR]+ {MRnnn}
WRs [AR]- {MRnnn}
WRs [HPM] {MRnnn}
WRs [NFA] {MRnnn}
Data Move
(64-bit operations)
xxx nnn 001 100
MOV [AR],CR {MRnnn}
MOV [NFA],CR {MRnnn}
MOV [HPM],CR {MRnnn}
aaa
NFA
HPMA
AS
NFD
HPD
MOV CR, [AR] {MRnnn}
RESERVED
MOV CR, [HPM] {MRnnn}
aaa
n/c
HPMA
AS
AS
HPD
xxx nnn 001 101
xxx nnn 001 110
Comparison
(64-bit operations)
xxx nnn 011 000
CMP CR {MRnnn}
CMPs DQ {MRnnn}
CMPWs DQ {MRnnn}
CMPT DQ
HPMA
HPMA
HPMA
HPMA
HPMA
AS
AS
AS
HPD
HPD
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
n/c
n/c
n/c
n/c
n/c
n/a
n/a
n/a
n/a
n/a
xxx nnn 011 001
xxx nnn 011 010
xxx xxx 011 100
xxx xxx 011 011
NEXT
Validity Bit Control
xxx xxx 100 000
xxx xxx 100 001
xxx xxx 100 010
xxx xxx 100 011
SET V@[AR]
RST V@[AR]
RST V@[HPM]
RST V@AML
aaa
aaa
HPMA
HPMA
AS
AS
HPS
AS
RD V@[AR]
RESERVED
RESERVED
RESERVED
aaa
n/c
n/c
n/c
S
n/a
n/a
n/a
Initialization
xxx xxx 111 100
xxx xxx 111 101
xxx xxx 111 111
WR PA
RST FF
RST
n/c
n/c
All 1’s
NFD
AS
AS
RESERVED
RESERVED
RESERVED
n/c
n/c
n/c
n/a
n/a
n/a
Address Register Control
xxx xxx 100 100
INC AR
DEC AR
n/c
n/c
AS
AS
RESERVED
RESERVED
n/c
n/c
n/a
n/a
xxx xxx 100 101
Key: aaa = Random access address
All 1s = All PA:AA outputs HIGH
AS = All selected devices
n/c = No change
NFA = Next Free address
NFD = Highest-Priority device with a Free location
s = Segment (L for DSC LOW, H for DSC HIGH)
S = Selected device
HPD = Highest-Priority device
HPMA = Highest-Priority Match address
n/a = Not applicable
The "Scope" of a control state describes which devices respond in a multi-CAM system.
The "PA:AA" field describes what is output on the PA3-0:AA11-0 bus as a result of the control state.
/AV is HIGH unless otherwise noted.
DSC must be LOW if "s" is not indicated.
18
Rev. 8.04
MUSIC [ MUSIC SEMICONDUCTORS ]
