at88sc0104c ATMEL Corporation, at88sc0104c Datasheet - Page 27

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

Table 6-1.
Table 6-2.
5210A–SMIC–04/07
AT88SC12816C
AT88SC25616C
AT88SC3216C
AT88SC6416C
AT88SC0104C
AT88SC0204C
AT88SC0404C
AT88SC0808C
AT88SC1616C
Device
Device
ATR Codes for Lower Density CryptoMemory
ATR Codes for Higher Density CryptoMemory
value if operating in asynchronous mode. The CyrptoMemory device will always output all 8
bytes in response to the asynchronous ATR command regardless of the contents of the register.
Once the asynchronous mode has been selected, it is not possible to switch to the synchronous
mode without powering off the device.
Figure 6-2.
After a successful ATR, the Protocol and Parameter Selection (PPS) protocol defined by ISO
7816-3 may be used to negotiate the communications speed with CryptoMemory devices 32-
Kbits and larger in user memory. CryptoMemory supports D values of 1,2,4,8,12 and 16 for an F
value of 372. CryptoMemory also supports D values of 8 and 16 for F = 512. This allows selec-
tion of 8 communications speeds ranging from 9600 baud to 153,600 baud.
$3B
$3B
$3B
$3B
$3B
$3B
$3B
$3B
$3B
TS
TS
CLK-SCL
I/O-SDA
AT88SC0104/0204/0404/0808/1616/3216/6416/12816/25616C
RST
V cc
$B3
$B3
$B3
$B3
$B2
$B2
$B2
$B2
$B2
T0
T0
Power Up Sequence for Smart Card Mode
TA(1)
TA(1)
$11
$11
$11
$11
$11
$11
$11
$11
$11
TB(1)
TB(1)
$00
$00
$00
$00
$00
$00
$00
$00
$00
TD(1)
TD(1)
$10
$10
$10
$10
$10
$00
$00
$00
$00
TA(2)
$80
$80
$80
$80
$80
$00
$00
$00
$00
T1
ATR
$00
$00
$00
$00
$00
$00
$00
$01
$02
T1
T2
$01
$02
$04
$08
$16
$32
$64
$28
$56
T2
T3
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