PMC
OPERATING MODES
Pm39F010 / Pm39F020 / Pm39F040
Table 2. Bus Operation Modes
Mode
Read
Write
Standby
Output Disable
CE#
V
IL
V
IL
V
IH
X
OE#
V
IL
V
IH
X
V
IH
WE#
V
IH
V
IL
X
X
ADDRESS
X
(1)
I/O
D
OUT
D
IN
High Z
High Z
Manufacturer ID
X
X
X
A2 - A
MS (2)
= X, A9 =
V
H (3)
,
A1 = V
IL
, A0 = V
IL
A2 - A
MS (2)
= X, A9 =
V
H (3)
,
A1 = V
IL
, A0 = V
IH
3.
V
H
= 12.0 V ± 0.5 V.
Product Identification
Hardware
V
IL
V
IL
V
IH
Device ID
Notes:
1. X can be V
IL
, V
IH
or addresses.
2. A
MS
= Most significant address;
A
MS
= A16 for Pm39F010, A17 for Pm39F020, and
A18 for Pm39F040.
COMMAND DEFINITION
Table 3. Software Command Definition
1st B u s
C ycle
Addr D ata
Addr D
OUT
555h A A h
555h A A h
555h A A h
555h A A h
555h A A h
555h A A h
X X X h F 0h
2A A h 55h
2A A h 55h
2A A h 55h
2A A h 55h
2A A h 55h
2A A h 55h
555h 80h
555h 80h
555h 80h
555h A 0h
555h 90h
555h F 0h
555h A A h
555h A A h
555h A A h
Addr D
IN
2A A h 55h
2A A h 55h
2A A h 55h
555h 10h
SA
(1)
30h
BA
(2)
50h
2n d B u s
C ycle
Addr D ata
3rd B us
C ycle
Addr D ata
4th B us
C ycle
Addr D ata
5th B us
C ylce
Addr D ata
6th B us
C ycle
Addr D ata
C ommand
S eq u en ce
Read
C hi p Erase
Sector Erase
Block Erase
Byte Program
Product ID Entry
Product ID Exi t
(3)
Product ID Exi t
(3)
B us
C ycle
1
6
6
6
4
3
3
1
Notes:
1. SA = Sector address of the sector to be erased.
2. BA = Block address of the block to be erased.
3. Either one of the Product ID Exit command can be used.
Programmable Microelectronics Corp.
10
Issue Date: March, 2004, Rev: 1.3
PMC [ PMC-SIERRA, INC ]
