IN90S2333DW Datasheet, PDF (5/12 Pages) Integral Corp. – 8-BIT MICROCONTROLLER WITH 2K/4K BYTES BUILD-IN PROGRAMMABLE FLASH

IN90S2333DW, IN90LS2333DW,
AGND
If the board has a separate analog ground plane, this pin should be connected to this ground plane.
Otherwise, connect to GND.
Architectural Overview
The fast-access register file concept contains 32 x 8-bit general purpose working registers with a single
clock cycle access time. This means that during one single clock cycle, one Arithmetic Logic Unit (ALU)
operation is executed. Two operands are output from the register file, the operation is executed, and the
result is stored back in the register file - in one clock cycle.
Six of the 32 registers can be used as three 16-bits indirect address register pointers for Data Space
addressing - enabling efficient address calculations. One of the three address pointers is also used as the
address pointer for the constant table look up function. These added function registers are the 16-bits X-
register, Y-register and Z-register.
The ALU supports arithmetic and logic functions between registers or between a constant and a register.
Single register operations are also executed in the ALU. In addition to the register operation, the
conventional memory addressing modes can be used on the register file as well. This is enabled by the
fact that the register file is assigned the 32 lowermost Data Space addresses ($00 - $1F), allowing them
to be accessed as though they were ordinary memory locations.
AVR IN90S2333 Architecture
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