AT88SA102S_10 ATMEL [ATMEL Corporation], AT88SA102S_10 Datasheet - Page 19

• Manufacturer Part Number: AT88SA102S_10
• Description: Atmel CryptoAuthentication
• Manufacturer: ATMEL [ATMEL Corporation]

5.6.
6.
8584F–SMEM–8/10
PauseLong
Forces the chip into the pause state until the watchdog timer expires, after which it will automatically enter into the
sleep state. During execution of this command and while in the pause state the chip will ignore all activity on the
IO signal. This command is used to prevent bus conflicts in a system that also includes other Atmel
AT88SA102S chips or an Atmel CryptoAuthentication host chip sharing the same signal wire.
Table 5-1.
The Selector parameter provides a mechanism to select which device will pause if there are multiple devices on
the bus:
Pinout
Table 6-1.
Opcode
Param1
Param2
Data
Pin #
1
2
3
If the Selector parameter is 0x00, then every AT88SA102S chip receiving this command will go into the
pause state and no chip will return a success code.
If any of the bits of the Selector parameter are set, then the chip will read the values of Fuse[84-87] and
go into the pause state only if those fuse values match the least significant 4-bits of the Selector
parameter. If the chip does NOT go into the pause state, it returns an error code of 0x0F. Otherwise it
goes into the pause state and never returns any code.
Name
Signal
V
V
Input Parameters
SOT Pin Definitions
CC
SS
Name
PAUSELONG
Selector
Zero
Ignored
Description
IO channel to the system, open drain output. It is expected that an external pull-up resistor will be
provided to pull this signal up to V
pin can be pulled to either V
Power supply, 2.7 – 5.25V. This pin should be bypassed with a high quality 0.1µF capacitor close
to this pin with a short trace to V
Additional applications information at
Connect to system ground
Size
1
1
2
0
Notes
0x01
Which chip to put into the pause state, 0x00 for all Atmel AT88SA102S chips
Must be 0x00 00
CC
or V
SS
CC
SS
for proper communications. When the chip is not in use this
.
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