AT88SC0104C datasheet(45/58 Pages) ATMEL

45 / 58 page

5210B–SMIC–11/08

AT88SC0104/0204/0404/0808/1616/3216/6416/12816/25616C

8.5.3

System WRITE: $B4

8.5.3.1

Functional

Figure 8-3.

System WRITE Command Functional Description

The System Write command allows writing of system data to the device. Depending on the value

of the P1 parameter, the host may write data in the configuration memory, program the fuses or

set the user zone.

The anti-tearing function is controlled by P1: the host may choose to write in the configuration

memory with anti-tearing enabled by setting P1 = $08 instead of $00. Similarly, the host may

choose to activate anti-tearing for a user zone by carrying out the Set User Zone command with

P1 = $0B instead of $03. All subsequent Write User Zone commands are then carried out with

anti-tearing enabled until the next Set User Zone command. Anti-tearing should be turned off if

not required, as it would otherwise cause more write cycles than necessary.

Device

Command

Parameter P1

Parameter P2

Number of Bytes N

Data

...

Data

Host

N data bytes

Table 8-7.

System WRITE Command Detail

Command

CLA

INS

Data(N)

Write Config Zone

(Devices 0104C-1616C)

$00

$B4

$00

addr

≤$10

N bytes

Write Config Zone

(Devices 3216C-6416C)

$00

$B4

$00

addr

≤$40

N bytes

Write Config Zone

(Devices 12816C-25616C)

$00

$B4

$00

addr

≤$80

N bytes

Write Fuses

$00

$B4

$01

fuse ID

$00

Set User Zone

$00

$B4

$03

zone

$00

Table 8-8.

Anti-Tearing

Command

CLA

INS

Data(N)

Write Config Zone w/a-t

$00

$B4

$08

addr

≤$08

N bytes

Set User Zone w/a-t

$00

$B4

$0B

zone

$00

AT88SC0104C датащи(PDF) 45 Page - ATMEL Corporation

AT88SC0104C датащи(HTML) 45 Page - ATMEL Corporation

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

датащи скачать

ссылки URL