Z84C9008VSG Zilog, Z84C9008VSG Datasheet - Page 62
![no-image](/images/manufacturer_photos/0/7/729/zilog_sml.jpg)
Z84C9008VSG
Manufacturer Part Number
Z84C9008VSG
Description
IC 8MHZ Z80 KIO 84-PLCC
Manufacturer
Zilog
Series
Z80r
Specifications of Z84C9008VSG
Processor Type
Z80
Features
Serial/Parallel Input/Output, Counter/Timer Circuit
Speed
8MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
84-LCC (J-Lead)
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Cpu Speed
8MHz
Digital Ic Case Style
LCC
No. Of Pins
84
Supply Voltage Range
5V
Operating Temperature Range
0°C To +70°C
Svhc
No SVHC (18-Jun-2010)
Rohs Compliant
Yes
Base Number
84
Clock Frequency
8MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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UM008005-0205
Z80 CPU
User’s Manual
A unique set of block transfer instructions is provided in the Z80. With a
single instruction, a block of memory of any size can be moved to any
other location in memory. This set of block moves is extremely valuable
when processing large strings of data. With a single instruction, a block of
external memory of any desired length can be searched for any 8-bit
character. When the character is found or the end of the block is reached,
the instruction automatically terminates. Both the block transfer and the
block search instructions can be interrupted during their execution so they
do not occupy the CPU for long periods of time.
The arithmetic and logical instructions operate on data stored in the
accumulator and other general-purpose CPU registers or external memory
locations. The results of the operations are placed in the accumulator and
the appropriate flags are set according to the result of the operation.
An example of an arithmetic operation is adding the accumulator to the
contents of an external memory location. The results of the addition are
placed in the accumulator. This group also includes 16-bit addition and
subtraction between 16-bit CPU registers.
The rotate and shift group allows any register or any memory location to
be rotated right or left, with or without carry either arithmetic or logical.
Also, a digit in the accumulator can be rotated right or left with two digits
in any memory location.
The bit manipulation instructions allow any bit in the accumulator, any
general-purpose register, or any external memory location to be set, reset,
or tested with a single instruction. For example, the most-significant bit of
register H can be reset. This group is especially useful in control
applications and for controlling software flags in general-purpose
programming.
The
various locations in the user’s program. This group uses several different
techniques for obtaining the new program counter address from specific
external memory locations. A unique type of call is the
instruction. This instruction actually contains the new address as a part of
JUMP
,
CALL
, and
RETURN
instructions are used to transfer between
Z80 CPU Instruction Description
RESTART
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