AT94K40AL-25BQC Atmel, AT94K40AL-25BQC Datasheet - Page 157
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AT94K40AL-25BQC
Manufacturer Part Number
AT94K40AL-25BQC
Description
IC FPSLIC 40K GATE 25MHZ 144LQFP
Manufacturer
Atmel
Series
FPSLIC®r
Specifications of AT94K40AL-25BQC
Core Type
8-bit AVR
Speed
18MHz
Interface
I²C, UART
Program Sram Bytes
20K-32K
Fpga Sram
18kb
Data Sram Bytes
4K ~ 16K
Fpga Core Cells
2304
Fpga Gates
40K
Fpga Registers
2862
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C
Package / Case
144-LQFP
For Use With
ATSTK594 - BOARD FPSLIC DAUGHTER FOR STK500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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Figure 4-51. Formats and States in the Slave Transmitter Mode
Table 4-33.
1138I–FPSLI–1/08
(TWSR)
Status
Code
$F8
$00
Reception of the own
slave address and one or
more data bytes
Arbitration lost as master
and addressed as slave
Last data byte transmitted.
No relevant state
information available;
TWINT = “0”
Bus error due to an
illegal START or STOP
condition
Serial Bus and 2-wire
Status of the 2-wire
Status Codes for Miscellaneous States
Serial Hardware
From master to slave
From slave to master
S
No TWDR action
No TWDR action
To/From TWDR
SLA
Application Software Response
R
DATA
STA
$A8
$B0
0
A
A
n
No TWCR action
STO
A
1
To TWCR
DATA
Any number of data bytes
and their associated acknowledge bits
This number (contained in TWSR) corresponds
to a defined state of the 2-wire serial bus
TWINT
1
AT94KAL Series FPSLIC
$B8
TWEA
A
X
DATA
Wait or proceed current transfer
Only the internal hardware is affected; no
STOP condition is sent on the bus. In all
cases, the bus is released and TWSTO is
cleared.
Next Action Taken by 2-wire
$C0
$C8
A
A
Serial Hardware
P or S
All 1's
P or S
157
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