RD48F2000P0ZBQ0 Intel Corporation, RD48F2000P0ZBQ0 Datasheet - Page 76
RD48F2000P0ZBQ0
Manufacturer Part Number
RD48F2000P0ZBQ0
Description
Intel StrataFlash Embedded Memory
Manufacturer
Intel Corporation
Datasheet
1.RD48F2000P0ZBQ0.pdf
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1-Gbit P30 Family
Table 28.
Note:
14.1.1
14.2
April 2005
76
Status Register Description (Sheet 2 of 2)
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.
Clear Status Register
The Clear Status Register command clears the status register. It functions independent of V
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 Register.
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 register data (see
Section 9.2, “Device Commands” on page 50
command).
on page 77
Status Register (SR)
5
4
3
2
1
0
show the address offsets and data values for this device.
Table 29, “Device Identifier Information” on page 77
Erase Status (ES)
Program Status (PS)
V
Program Suspend Status
(PSS)
Block-Locked Status
(BLS)
BEFP Status (BWS)
PP
Intel StrataFlash
Status (VPPS)
Order Number: 306666, Revision: 001
®
Embedded Memory (P30)
0 = Erase successful.
1 = Erase fail or program sequence error when set with SR[4,7].
0 = Program successful.
1 = Program fail or program sequence error when set with SR[5,7]
0 = VPP within acceptable limits during program or erase operation.
1 = VPP < VPPLK during program or erase operation.
0 = Program suspend not in effect.
1 = Program suspend in effect.
0 = Block not locked during program or erase.
1 = Block locked during program or erase; operation aborted.
DWS
0
0
1
1
BWS
0
1
0
1
for details on issuing the Read Device Identifier
= WSM is busy and buffer is available for loading.
= WSM is busy and buffer is not available for loading.
= WSM is not busy and buffer is available for loading.
= Reserved for Future Use (RFU).
and
Table 30, “Device ID codes”
Default Value = 0x80
Datasheet
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