Numonyx™ Wireless Flash Memory (W18)
1.2
Table 2:
“1.8 V”
Set
Pin and signal
Word
Signal
Voltage
Conventions
Conventions
Refers to the full V
CC
voltage range of 1.7 V – 1.95 V (except where noted) and “V
PP
= 12 V” refers to 12 V
±5%.
Refers to registers means the bit is a logical 1 and cleared means the bit is a logical 0.
Often used interchangeably to refer to the external signal connections on the package (ball is the term used for
VF BGA).
2 bytes or 16 bits.
Names
are in all CAPS (see
.)
Applied
to the signal is subscripted for example V
PP
.
Throughout this document, references are made to top, bottom, parameter, and partition. To clarify these references, the
following conventions have been adopted:
Block
Main block
Parameter
block
Block Base
Address (BBA)
Partition
Partition Base
Address (PBA)
Top partition
Bottom
partition
Main partition
Parameter
partition
Top parameter
device
Bottom
parameter
device (BPD)
A group of bits (or words) that erase simultaneously with one block erase instruction.
Contains 32-Kwords.
Contains 4-Kwords.
The first address of a block.
A group of blocks that share erase and program circuitry and a common Status Register.
The first address of a partition. For example, on a 32-Mbit top-parameter device partition number 5 has a PBA
of 0x140000.
Located at the highest physical device address. This partition may be a main partition or a parameter partition.
Located at the lowest physical device address. This partition may be a main partition or a parameter partition.
Contains only main blocks.
Contains a mixture of main blocks and parameter blocks.
Has the parameter partition at the top of the memory map with the parameter blocks at the top of that
partition. This was formerly referred to as a Top-Boot device.
Has the parameter partition at the bottom of the memory map with the parameter blocks at the bottom of that
partition. This was formerly referred to as a Bottom-Boot Block flash device.
Datasheet
8
November 2007
Order Number: 290701-18
NUMONYX [ NUMONYX B.V ]
