AT94K05AL ATMEL Corporation, AT94K05AL Datasheet - Page 43
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: 43 of 192
- Download datasheet (2Mb)
General-purpose
Register File
Rev. 1138F–FPSLI–06/02
Figure 28 shows the structure of the 32 x 8 general-purpose working registers in the CPU.
Figure 28. AVR CPU General-purpose Working Registers
All the register operating instructions in the instruction set have direct- and single-cycle access
to all registers. The only exception is the five constant arithmetic and logic instructions SBCI,
SUBI, CPI, ANDI and ORI between a constant and a register and the LDI instruction for load-
immediate constant data. These instructions apply to the second half of the registers in the
register file – R16..R31. The general SBC, SUB, CP, AND and OR and all other operations
between two registers or on a single-register apply to the entire register file.
As shown in Figure 28 each register is also assigned a data memory address, mapping the
registers directly into the first 32 locations of the user Data Space. Although not being physi-
cally implemented as SRAM locations, this memory organization provides great flexibility in
access of the registers, as the X, Y and Z registers can be set to index any register in the file.
The 4 to 16
general data are implemented starting at address $0060 as follows:
Addresses beyond the maximum amount of data SRAM are unavailable for write or read and
will return unknown data if accessed. Ghost memory is not implemented.
Working Registers
General-purpose
Kbytes
of data SRAM, as configured during FPSLIC download, are available for
4 Kbytes
8 Kbytes
12 Kbytes
16 Kbytes
7
R13
R14
R15
R16
R17
R26
R27
R28
R29
R30
R31
. . .
R0
R1
R2
. . .
$0060 : $0FFF
$0060 : $1FFF
$0060 : $2FFF
$0060 : $3FFF
AT94K Series FPSLIC
0
Addr.
$00
$01
$02
$0D
$0E
$0F
$10
$11
$1A
$1B
$1C
$1D
$1E
$1F
AVR X-register Low Byte
AVR X-register High Byte
AVR Y-register Low Byte
AVR Y-register High Byte
AVR Z-register Low Byte
AVR Z-register High Byte
43
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: