UM10360 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved.
User manual Rev. 3 — 19 December 2013 634 of 841
NXP Semiconductors
UM10360
Chapter 32: LPC176x/5x Flash memory interface and programming
32.8.1 Prepare sector(s) for write operation
This command makes flash write/erase operation a two step process.
Fig 138. IAP parameter passing
COMMAND CODE
PARAMETER 1
PARAMETER 2
PARAMETER n
STATUS CODE
RESULT 1
RESULT 2
RESULT n
command
parameter table
command
result table
ARM REGISTER r0
ARM REGISTER r1
Table 589. IAP Prepare sector(s) for write operation command
Command Prepare sector(s) for write operation
Input Command code: 50
(decimal)
Param0: Start Sector Number
Param1: End Sector Number (should be greater than or equal to start sector
number).
Return Code CMD_SUCCESS |
BUSY |
INVALID_SECTOR
Result None
Description This command must be executed before executing "Copy RAM to Flash" or
"Erase Sector(s)" command. Successful execution of the "Copy RAM to Flash" or
"Erase Sector(s)" command causes relevant sectors to be protected again. To
prepare a single sector use the same "Start" and "End" sector numbers.
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