AT94K10AL-25AQC Atmel, AT94K10AL-25AQC Datasheet - Page 22
AT94K10AL-25AQC
Manufacturer Part Number
AT94K10AL-25AQC
Description
IC FPSLIC 10K GATE 25MHZ 100TQFP
Manufacturer
Atmel
Series
FPSLIC®r
Specifications of AT94K10AL-25AQC
Core Type
8-bit AVR
Speed
25MHz
Interface
I²C, UART
Program Sram Bytes
20K-32K
Fpga Sram
4kb
Data Sram Bytes
4K ~ 16K
Fpga Core Cells
576
Fpga Gates
10K
Fpga Registers
846
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C
Package / Case
100-TQFP, 100-VQFP
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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3.2
Program and Data SRAM
Up to 36 Kbytes of 15 ns dual-port SRAM reside between the FPGA and the AVR. This SRAM is
used by the AVR for program instruction and general-purpose data storage. The AVR is con-
nected to one side of this SRAM; the FPGA is connected to the other side. The port connected
to the FPGA is used to store data without using up bandwidth on the AVR system data bus.
(1)
The FPGA core communicates directly with the data SRAM
block, viewing all SRAM memory
space as 8-bit memory.
Note:
1. The unused bits for the FPGA-SRAM address must tie to ‘0’ because there is no pull-down
circuitry.
For the AT94K10 and AT94K40, the internal program and data SRAM is divided into three
blocks: 10 Kbytes x 16 dedicated program SRAM, 4 Kbytes x 8 dedicated data SRAM and 6
Kbytes x 16 or 12 Kbytes x 8 configurable SRAM, which may be swapped between program and
data memory spaces in 2 Kbytes x 16 or 4 Kbytes x 8 partitions.
For the AT94K05, the internal program and data SRAM is divided into three blocks: 4 Kbytes 16
dedicated program SRAM, 4 Kbytes x 8 dedicated data SRAM and 6 Kbytes x 16 or 12
Kbytes x 8 configurable SRAM, which may be swapped between program and data memory
spaces in 2 Kbytes x 16 or 4 Kbytes x 8 partitions.
The addressing scheme for the configurable SRAM partitions prevents program instructions
from overwriting data words and vice versa. Once configured (SCR41:40 –
See “System Control
Register – FPGA/AVR” on page
30.), the program memory space remains isolated from the data
memory space. SCR41:40 controls internal muxes. Write enable signals allow the memory to be
safely segmented.
Figure 3-2
shows the FPSLIC configurable allocation SRAM memory.
AT94KAL Series FPSLIC
22
1138I–FPSLI–1/08
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