AT94K05AL ATMEL Corporation, AT94K05AL Datasheet - Page 126
AT94K05AL
Manufacturer Part Number
AT94K05AL
Description
Fpslic Devices Combine 5K Gates of Atmel's Patented AT40K Fpga Architecture, a 20 Mips Avr 8-bit Risc Microprocessor Core, Numerous Fixed Microcontroller Peripheries And up to 36K Bytes of Program And Data SRAM.
Manufacturer
ATMEL Corporation
Datasheet
1.AT94K05AL.pdf
(192 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 126 of 192
- Download datasheet (2Mb)
Baud-rate Generator
126
AT94K Series FPSLIC
• Bit 3 - TXEN0/TXEN1: Transmitter Enable
This bit enables the UART transmitter when set (one). When disabling the transmitter while
transmitting a character, the transmitter is not disabled before the character in the shift register
plus any following character in UDRn has been completely transmitted.
• Bit 2 - CHR90/CHR91: 9-bit Characters
When this bit is set (one) transmitted and received characters are 9-bit long plus start and stop
bits. The 9-bit is read and written by using the RXB8n and TXB8n bits in UCSRnB, respec-
tively. The 9th data bit can be used as an extra stop bit or a parity bit.
• Bit 1 - RXB80/RXB81: Receive Data Bit 8
When CHR9n is set (one), RXB8n is the 9th data bit of the received character.
• Bit 0 - TXB80/TXB81: Transmit Data Bit 8
When CHR9n is set (one), TXB8n is the 9th data bit in the character to be transmitted.
The baud-rate generator is a frequency divider which generates baud-rates according to the
following equation
•
•
•
Note:
For standard crystal frequencies, the most commonly used baud-rates can be generated by
using the UBR settings in Table 35. UBR values which yield an actual baud-rate differing less
than 2% from the target baud-rate, are bold in the table. However, using baud-rates that have
more than 1% error is not recommended. High error ratings give less noise resistance.
BAUD = Baud-rate
f
UBR = Contents of the UBRRHI and UBRRn Registers, (0 - 4095)
CK
= Crystal Clock Frequency
1. This equation is not valid when the UART transmission speed is doubled. See “Double
Speed Transmission” on page 128 for a detailed description.
(1)
:
BAUD
=
--------------------------------- -
16(UBR
f
CK
+
1 )
Rev. 1138F–FPSLI–06/02
Related parts for AT94K05AL
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: