Control State Descriptions
MU9C4320L ATMCAM
Initialization
Control State:
Write Page Address to
Highest-Priority Empty Device;
Control State:
Mnemonic:
Reset
RST
Set Full
WR PA
Binary Op Code: XXX XXX 111 111
/W: LOW /AV: HIGH PA:AA: All ‘1’s Scope: AS
Description: Performs a software reset of the ATMCAM.
See Table 2.
Mnemonic:
Binary Op Code: XXX XXX 111 100
/W: LOW /AV: HIGH PA:AA: n/c Scope: NFD
Description: Writes DQ3–0 to the Page Address field of
the Configuration register, and sets the /FF LOW. This
control state is intended for sequential loading of Page
addresses in vertically cascaded systems that do not have
explicit lines controlling the /CS inputs to the individual
devices.
Control State:
Mnemonic:
Undefined Operations
RESERVED
Description: Binary Op codes that are not documented are
reserved control states. The results of these control states
are undefined.
Control State:
Mnemonic:
Reset Full Flag
RST FF
Binary Op Code: XXX XXX 111 101
/W: LOW /AV: HIGH PA:AA: n/c Scope: AS
Description: Resets /FF HIGH. Used after sequentially
loading the PA fields with previous control state to set the
system back to empty.
Table 2: Reset Conditions
Resource
Hardware Reset
All locations set Empty
Software Reset
All locations set Empty
No Change
Memory Array
VP Table
Not reset
Comparand Register
Mask Registers 1–7
Address Register
Instruction Register
Next Free Address Register
Device Select Register
DS31–9
00000000H
00000000H
00000000H
00000000H
00000000H
00000000H
00000000H
00000000H
No Change
00000000H
Reserved
SELEN
000000H
1 = Disabled
0000
000000H
1 = Disabled
0000
DS8
DS7–4
Reserved
Device Select
DS3-0
1111
No Change
Status Register
SR31–28
Flags
1111 = No Match, Not Full
1111
SR27–26
Reserved
00
00
SR25–24
Active Address Type
Reserved
11 = Reset State
0000
11 = Reset State
0000
SR23–20
SR19–16
Page Address
Reserved
1111
1111
SR15–12
0000
0000
SR11–0
Active Address
111111111111
111111111111
Configuration Register
FR31–29
Direct Write Mask Source 000 = No Mask
No Change
0
FR28
Reserved
Control Mode
LPC
0
FR27–26
11 = Software Control Mode
1 = Not Low Priority CAM
1 = Disable VP Table
No Change
No Change
No Change
No Change
No Change
0000
FR25
FR24
EN VP
FR23–12
VP Table Address Mask 111111111111
VP Table Page Address 1111
FR11–8
FR7–4
Reserved
0000
1111
FR3–0
Page Address
No Change
Rev. 3
25
MUSIC [ MUSIC SEMICONDUCTORS ]
