RC28F640P33B85 Numonyx, RC28F640P33B85 Datasheet - Page 45

• Manufacturer Part Number: RC28F640P33B85
• Description: Numonyx? Strataflash Embedded Memory
• Manufacturer: Numonyx

Numonyx™ StrataFlash
Table 23: Command Bus Cycles
November 2007
Order Number: 314749-05
Notes:
1.
2.
3.
4.
Configuration
Protection
Unlocking
Locking/
Program
Suspend
Erase
Block
Mode
Read
First command cycle address should be the same as the operation’s target address.
DBA = Device Base Address (NOTE: needed for dual-die 512Mbit device)
DnA = Address within the device.
IA = Identification code address offset.
QA = CFI Query address offset.
WA = Word address of memory location to be written.
BA = Address within the block.
PRA = Protection Register address.
LRA = Lock Register address.
RCD = Read Configuration Register data on QUAD+ A[15:0] or EASY BGA / TSOP A[16:1].
ID = Identifier data.
QD = Query data on DQ[15:0].
SRD = Status Register data.
WD = Word data.
N = Word count of data to be loaded into the write buffer.
PD = Protection Register data.
LRD = Lock Register data.
The second cycle of the Buffered Program Command is the word count of the data to be loaded into the write buffer. This
is followed by up to 32 words of data.Then the confirm command (0xD0) is issued, triggering the array programming
operation.
The confirm command (0xD0) is followed by the buffer data.
Read Array
Read Device Identifier
CFI Query
Read Status Register
Clear Status Register
Word Program
Buffered Program
Buffered Enhanced Factory
Program (BEFP)
Block Erase
Program/Erase Suspend
Program/Erase Resume
Lock Block
Unlock Block
Lock-down Block
Program Protection Register
Program Lock Register
Program Read Configuration
Register
®
Command
Embedded Memory (P33)
(4)
(3)
Cycles
Bus
≥ 2
≥ 2
> 2
> 2
1
2
1
2
2
2
2
1
1
2
2
2
2
Oper
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
First Bus Cycle
Addr
DnA
DnA
DnA
DnA
DnA
DnA
DnA
RCD
PRA
LRA
WA
WA
WA
BA
BA
BA
BA
(1)
Data
0x40/
0xD0
0xC0
0xC0
0x90
0x98
0x70
0x50
0x10
0xE8
0x80
0x20
0xB0
0x60
0x60
0x60
0x60
0xFF
(2)
Oper
Write
Write
Write
Write
Write
Write
Write
Write
Write
Write
Read
Read
Read
-
-
-
-
Second Bus Cycle
DBA + QA
DBA + IA
Addr
DnA
RCD
PRA
LRA
WA
WA
WA
BA
BA
BA
BA
-
-
-
-
(1)
Data
Datasheet
0xD0
0xD0
0xD0
N - 1
0x01
0x2F
0x03
SRD
LRD
WD
QD
PD
ID
-
-
-
-
(2)
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