at88sc0104c ATMEL Corporation, at88sc0104c Datasheet - Page 29

• Manufacturer Part Number: at88sc0104c
• Description: Cryptomemory Specification For Standard Mode Of Operation
• Manufacturer: ATMEL Corporation

Table 7-1.
7.3
5210A–SMIC–04/07
System Write
System Read
Write User
Read User
Password
Verify
Zone
Zone
Command Format
CryptoMemory Synchronous Command Set
Command Description
Normal
(AT88SC0104C-AT88SC1616C)
Normal
(AT88SC3216C, AT88SC6416C)
Normal
(AT88SC12816C, AT88SC25616C)
with Anti-Tearing (all devices)
Write Config Zone
(AT88SC0104C-AT88SC1616C)
Write Config Zone
(AT88SC3216C, AT88SC6416C)
Write Config Zone
(AT88SC12816C, AT88SC25616C)
Write Fuses
Set User Zone
Write Config Zone with Anti-Tearing
Set User Zone with Anti-Tearing
Read Conifg Zone
Read Fuse Byte
Write Password
Read Password
Most CryptoMemory commands have the same format as a two wire interface (TWI) write com-
mand. The TWI write command is characterized by a zero in the LSB of the first byte (device
address). The number of word address bytes in a TWI write command will vary depending on
the size of the memory being addressed. All bytes whether part of the command or data are
generated by the host and sent to the memory device that will acknowledge each byte.
AT88SC0104/0204/0404/0808/1616/3216/6416/12816/25616C
Command
$BA
$BA
$B0
$B0
$B0
$B0
$B2
$B4
$B4
$B4
$B4
$B4
$B4
$B4
$B6
$B6
Addr 1
addr
addr
addr
addr
addr
$08
$0B
$0X
$1X
$00
$00
$00
$01
$03
$00
$01
Addr 2
fuse ID
zone
zone
addr
addr
addr
addr
addr
addr
addr
addr
addr
addr
$00
$00
$00
N ≤ $10
N ≤ $40
N ≤ $80
N ≤ $10
N ≤ $40
N ≤ $80
N ≤ $08
N ≤ 08
$00
$00
$00
$01
$03
$03
N
N
N
Data (N)
N bytes
N bytes
N bytes
N bytes
N bytes
N bytes
N bytes
N bytes
3 byte password
X=password set (0-7)
3 byte password
X=password set (0-7)
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