at94k40al ATMEL Corporation, at94k40al Datasheet - Page 148
at94k40al
Manufacturer Part Number
at94k40al
Description
At94kal Series Field Programmable System Level Integrated Circuit
Manufacturer
ATMEL Corporation
Datasheet
1.AT94K40AL.pdf
(204 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
at94k40al-25DQC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 148 of 204
- Download datasheet (4Mb)
4.30.1.5
Miscellaneous States
There are two status codes that do not correspond to a defined 2-wire Serial Interface state: Sta-
tus $F8 and Status $00, see
Table
4-33.
Status $F8 indicates that no relevant information is available because the 2-wire Serial Interrupt
flag (TWINT) is not set yet. This occurs between other states, and when the 2-wire Serial Inter-
face is not involved in a serial transfer.
Status $00 indicates that a bus error has occurred during a 2-wire serial transfer. A bus error
occurs when a START or STOP condition occurs at an illegal position in the format frame.
Examples of such illegal positions are during the serial transfer of an address byte, a data byte
or an acknowledge bit. When a bus error occurs, TWINT is set. To recover from a bus error, the
TWSTO flag must set and TWINT must be cleared by writing a logic 1 to it. This causes the 2-
wire Serial Interface to enter the not addressed Slave mode and to clear the TWSTO flag (no
other bits in TWCR are affected). The SDA and SCL lines are released and no STOP condition
is transmitted.
AT94KAL Series FPSLIC
148
1138I–FPSLI–1/08
Related parts for at94k40al
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
5K - 40K Gates of At40k FPGA with 8-bit Microcontroller, up to 36K Bytes of SRAM and On-chip JTAG ICE
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: