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参数资料
| 型号： | PH28F128W18BD60A |
| 厂商： | INTEL CORP |
| 元件分类： | PROM |
| 英文描述： | 8M X 16 FLASH 1.8V PROM, 60 ns, PBGA56 |
| 封装： | 9 X 11 MM, 1 MM HEIGHT, LEAD FREE, VFBGA-56 |
| 文件页数： | 70/106页 |
| 文件大小： | 1496K |
| 代理商： | PH28F128W18BD60A |
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Intel
Wireless Flash Memory (W18)
07-Dec-2005
Intel Wireless Flash Memory (W18)
Datasheet
66
Order Number: 290701, Revision: 015
11.2
Factory Programming
The standard factory programming mode uses the same commands and algorithm as the Word
Program mode (40h/10h). When VPP is at VPP1, program and erase currents are drawn through
VCC. If VPP is driven by a logic signal, VPP1 must remain above the VPP1Min value to perform in-
system flash modifications. When VPP is connected to a 12 V power supply, the device draws
program and erase current directly from VPP. This eliminates the need for an external switching
on page 83 shows examples of flash power supply usage in various configurations.
Figure 26.
Word Program Flowchart
Suspend
Program
Loop
Start
Write 40h,
Word Address
Write Data
Word Address
Read Status
Register
SR[7] =
Full Program
Status Check
(if desired)
Program
Complete
FULL PROGRAM STATUS CHECK PROCEDURE
Suspend
Program
Read Status
Register
Program
Successful
SR[3] =
SR[1] =
0
SR[4] =
0
1
0
No
Yes
V
PP Range
Error
Device
Protect Error
Program
Error
WORD PROGRAM PROCEDURE
SR[3] MUST be cleared before the WSM will allow further
program attempts
Only the Clear Staus Register command clears SR[4:3,1].
If an error is detected, clear the status register before
attempting a program retry or other error recovery.
Standby
Bus
Operation
Command
Check SR[3]
1 = V
PP error
Check SR[4]
1 = Data program error
Comments
Repeat for subsequent programming operations.
Full status register check can be done after each program or
after a sequence of program operations.
Comments
Bus
Operation
Command
Data = 40h
Addr = Location to program (WA)
Write
Program
Setup
Data = Data to program (WD)
Addr = Location to program (WA)
Write
Data
Read SRD
Toggle CE# or OE# to update SRD
Read
Check SR[7]
1 = WSM ready
0 = WSM busy
Standby
Check SR[1]
1 = Attempted program to locked block
Program aborted
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