JS48F4400PCZ00 datasheet(95/102 Pages) NUMONYX

95 / 102 page

November 2007

Datasheet

Order Number: 290701-18

Numonyx™ Wireless Flash Memory (W18)

Table 45: Burst Read Information for Non-muxed Device

Table 44: Protection Register Information

Offset

P = 39h

Length

Description

(Optional Flash Features and Commands)

Add.

Hex

Code

Value

(P + E)h

Number of Protectuib Register fields in JEDEC ID space.

“00h” indicates that 256 protection fields are available.

47:

--01

(P + E)h

(P + 10)h

(P + 11)h

(P + 12)h

Protection Field 1: Protection Description

This field describes user-available One Time Programmable (OTP)

Protection Register bytes, Some are pre-programmed with device-

unique serial numbers. Others are user-programmable. Bits are 0-15

point to the Protection Register lock byte, the section’s first byte. The

following bytes are factory pre-programmed and user-programmable:

• bits 0-7 = Lock/bytes JEDEC-plane physical low

address

• bites 8-15 = Lock/bytes JEDEC-plane physical high

address

• bits 16-23 = “n” such that 2n = factory pre-

programmed bytes

• bits 24-31 = “n” such that 2n = user-programmable bytes

48:

49:

4A:

4B:

--80

--00

--03

80h

00h

8 byte

Offset

(1)

Length

Description

Hex

P = 39h

(Optional flash features and commands)

Add. Code Value

(P+13)h

4C:

--03 8 byte

(P+14)h

4D:

--04

(P+15)h

4E:

--01

(P+16)h

Synchronous mode read capability configuration 2

4F:

--02

(P+17)h

Synchronous mode read capability configuration 3

50:

--03

(P+18)h

Synchronous mode read capability configuration 4

51:

--07

Cont

Page Mode Read capability

bits 0–7 = “n” such that 2n HEX value represents the number of

read-page bytes. See offset 28h for device word width to

determine page-mode data output width. 00h indicates no

read page buffer.

Number of synchronous mode read configuration fields that

follow. 00h indicates no burst capability.

Synchronous mode read capability configuration 1

Bits 3–7 = Reserved

bits 0–2 “n” such that 2n+1 HEX value represents the

maximum number of continuous synchronous reads when

the device is configured for its maximum word width. A value

of 07h indicates that the device is capable of continuous

linear bursts that will output data until the internal burst

counter reaches the end of the device’s burstable address

space. This field’s 3-bit value can be written directly to the

Read Configuration Register bits 0–2 if the device is

configured for its maximum word width. See offset 28h for

word width to determine the burst data output width.

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