AT94K40AL-25DQC Atmel, AT94K40AL-25DQC Datasheet - Page 58
AT94K40AL-25DQC
Manufacturer Part Number
AT94K40AL-25DQC
Description
IC FPSLIC 40K GATE 25MHZ 208PQFP
Manufacturer
Atmel
Series
FPSLIC®r
Specifications of AT94K40AL-25DQC
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
208-MQFP, 208-PQFP
For Use With
ATSTK594 - BOARD FPSLIC DAUGHTER FOR STK500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT94K40AL-25DQC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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AT94KAL Series FPSLIC
Figure 4-10. Out Instruction – AVR Writing to the FPGA
Note:
Figure 4-11. In Instruction – AVR Reading FPGA
Notes:
(FPGA DATA OUT)
(FISUA, B, C or D)
AVR CLOCK
(FISUA, B, C or D)
SYSTEM CLOCK)
AVR IOADR
FPGA IORE
SELECT "n"
FPGA CLOCK
1. AVR expects Write to be captured by the FPGA upon posedge of the AVR clock.
1. AVR captures read data upon posedge of the AVR clock.
2. At the end of an FPGA read cycle, there is a chance for the AVR data bus contention between
AVR DBUS
(FPGA DATA IN)
AVR IORE
AVR CLOCK
FPGA IOWE
AVR INST
AVR IOADR
SELECT "n"
FPGA I/O
AVR DBUS
the FPGA and another peripheral to start to drive (active IORE at new address versus
FPGAIORE + Select “n”), but since the AVR clock would have already captured the data from
AVR DBUS (= FPGA Data Out), this is a “don’t care” situation.
AVR IOWE
(SET TO AVR
AVR INST
FPGA I/O
OUT INSTRUCTION
IN INSTRUCTION
WRITE DATA VALID
READ DATA VALID
(1)
(2)
(2)
(1)
1138I–FPSLI–1/08
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