XC2000 datasheet(92/647 Pages) INFINEON

92 / 647 page

XC2000 Derivatives

System Units (Vol. 1 of 2)

Memory Organization

Preliminary

User’s Manual

3-30

V1.0, 2007-06

MemoryX2K, V1.1

The “Program Page” command is only accepted if the addressed flash module is in

Page Mode (otherwise, a sequence error is reported instead of execution). With the

“Program Page” command, the page mode is terminated, indicated by resetting the

related PAGE flag and the command mode is entered and the PROG flag in the status

IMB_FSR. While BUSY is set the IMB Core does not accept any further commands.

When the program process has finished BUSY is cleared but PROG stays set. It

indicates which operation has finished and will be cleared by a System Reset or by

“Clear Status”.

Read accesses to the busy flash module are not possible. Reading a busy flash module

stalls until the flash module becomes ready again.

If write protection is installed for the sector to be programmed, the “Program Page”

command is not accepted because the Flash is not in Page Mode (see description of the

“Enter Page Mode” command).

If the page to be programmed is a security page (accepted only in security page mode),

the new protection configuration (including keywords or protection confirmation code) is

valid directly after execution of this command.

While the IMB Core reads the new protection configuration all DMU accesses to any

flash module are stalled.

Erase Sector

Arguments: SA

Definition:

MOV XXAAH, XX80H

MOV XX54H, XXAAH

MOV SA, XX33H

Timing: 3-cycle command that sets BUSY for the whole erasing duration.

Description: The addressed physical sector in the flash array is erased. Following data

reads deliver all-zero data with correct ECC.

The erasing process is autonomously performed by the selected flash module. The CPU

is not occupied and can continue with its application.

The sector to be erased is addressed by SA (sector address) in the last command cycle.

With the last cycle of the “Erase Sector” command, the command mode is entered,

indicated by activation of the ERASE flag and after start of erase operation also by the

related busy flag in the status register IMB_FSR. The BUSY flag is cleared after finishing

the operation but ERASE stays set. It can be cleared by a System Reset or the “Clear

Status” command.

XC2000 Datasheet(PDF) 92 Page - Infineon Technologies AG

XC2000 Datasheet(HTML) 92 Page - Infineon Technologies AG

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 99 100 ...More

Datasheet Download

Link URL