HCS08 datasheet(62/290 Pages) MOTOROLA

62 / 290 page

Memory

MC9S08GB/GT

MOTOROLA

FBLANK — FLASH Verified as All Blank (erased) Flag

FBLANK is set automatically at the conclusion of a blank check command if the entire FLASH array

was verified to be erased. FBLANK is cleared by clearing FCBEF to write a new valid command.

Writing to FBLANK has no meaning or effect.

1 = After a blank check command is completed and FCCF = 1, FBLANK = 1 indicates the FLASH

array is completely erased (all $FF).

0 = After a blank check command is completed and FCCF = 1, FBLANK = 0 indicates the FLASH

array is not completely erased.

4.6.6 FLASH Command Register (FCMD)

Only five command codes are recognized in normal user modes as shown in Table 4-9. Refer to 4.4.3

Program and Erase Command Execution for a detailed discussion of FLASH programming and erase

operations.

All other command codes are illegal and generate an access error.

It is not necessary to perform a blank check command after a mass erase operation. Only blank check is

required as part of the security unlocking mechanism.

Bit 7

54321

Bit 0

Read:

000000

Write:

FCMD7

FCMD6

FCMD5

FCMD4

FCMD3

FCMD2

FCMD1

FCMD0

Reset:

000000

= Unimplemented or Reserved

Figure 4-9 FLASH Command Register (FCMD)

Table 4-9 FLASH Commands

Command

FCMD

Equate File Label

Blank check

$05

mBlank

Byte program

$20

mByteProg

Byte program — burst mode

$25

mBurstProg

Page erase (512 bytes/page)

$40

mPageErase

Mass erase (all FLASH)

$41

mMassErase

HCS08 bảng dữ liệu(PDF) 62 Page - Motorola, Inc

HCS08 bảng dữ liệu(HTML) 62 Page - Motorola, Inc

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

bảng dữ liệu tải về

Link URL