JS28F640P30B85 datasheet(70/99 Pages) NUMONYX

70 / 99 page

P30

Datasheet

November 2007

Order Number: 306666-11

Note:

Always clear the Status Register prior to resuming erase operations. It avoids Status Register

ambiguity when issuing commands during Erase Suspend. If a command sequence error

occurs during an erase-suspend state, the Status Register contains the command sequence

error status (SR[7,5,4] set). When the erase operation resumes and finishes, possible errors

during the erase operation cannot be detected via the Status Register because it contains the

previous error status.

14.1.1

Clear Status Register

The Clear Status Register command clears the status register. It functions independent

of VPP. The Write State Machine (WSM) sets and clears SR[7,6,2], but it sets bits

SR[5:3,1] without clearing them. The Status Register should be cleared before starting

a command sequence to avoid any ambiguity. A device reset also clears the Status

14.2

Read Device Identifier

The Read Device Identifier command instructs the device to output manufacturer code,

device identifier code, block-lock status, protection register data, or configuration

the Read Device Identifier command). Table 33, “Device Identifier Information” on

page 70 and Table 34, “Device ID codes” on page 71 show the address offsets and data

values for this device.

3VPP Status (VPPS)

0 = VPP within acceptable limits during program or erase operation.

1 = VPP < VPPLK during program or erase operation.

Program Suspend Status (PSS)

0 = Program suspend not in effect.

1 = Program suspend in effect.

Block-Locked Status (BLS)

0 = Block not locked during program or erase.

1 = Block locked during program or erase; operation aborted.

0BEFP Status (BWS)

After Buffered Enhanced Factory Programming (BEFP) data is loaded into the

buffer:

0 = BEFP complete.

1 = BEFP in-progress.

Table 32: Status Register Description (Sheet 2 of 2)

Status Register (SR)

Default Value = 0x80

Table 33: Device Identifier Information (Sheet 1 of 2)

Item

Address(1)

Data

Manufacturer Code

0x00

0089h

Device ID Code

0x01

ID (see

Table 34)

Block Lock Configuration:

BBA + 0x02

Lock Bit:

• Block Is Unlocked

DQ0 = 0b0

• Block Is Locked

DQ0 = 0b1

• Block Is not Locked-Down

DQ1 = 0b0

• Block Is Locked-Down

DQ1 = 0b1

Read Configuration Register

0x05

RCR Contents

Lock Register 0

0x80

PR-LK0

64-bit Factory-Programmed Protection Register

0x81–0x84

Factory Protection Register Data

64-bit User-Programmable Protection Register

0x85–0x88

User Protection Register Data

JS28F640P30B85 Datasheet(PDF) 70 Page - Numonyx B.V

JS28F640P30B85 Datasheet(HTML) 70 Page - Numonyx B.V

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

Datasheet Download

Link URL