LC8213K Datasheet, PDF (5/5 Pages) Sanyo Semicon Device – Image Data Compression/Expansion Processor

LC8213K
• CPU interface
The LC8213K has an 8-bit data bus. Various aspects of the operating mode can be set by accessing the interface
registers. Since the LC8213K provides interface pins for a DMA controller, DMA transfers with memory on the CPU
bus are supported.
• Image memory interface
The image memory has a 16-MB address space. A data bus width of either 8 or 16 bits can be selected.
• DMA transfer function
This function performs DMA transfers between image memory and I/O devices using the on-chip DMA controller. The
number of lines of data transferred can be set to any value up to 64k lines.
• Data transfers
Data can be transferred between the CPU bus and the image memory bus without encoding or decoding.
• Pad bit processing
Applications can select whether or not to perform pad bit processing. Pad bit processing consists of adding bits set to 0 at
the end of each line of encoded data so that the data for that line is an even multiple of 8 bits.
• Parameter settings
The LC8213K supports the following parameters, which can be set to any value in the indicated range.
• Number of bits processed on a single line (in byte units): 1 to 8k bytes
• Source document width (in byte units):
1 to 8k bytes
• Number of lines processed:
1 to 64k lines
• Minimum number of bits transmitted per line:
0 to 64k bits
• K parameter for MR encoding:
0 to 64k
• Number of lines handled in DMA transfers:
1 to 64k lines
• Number of EOL codes that form the RTC code:
0 to 255
Since the source document width and the number of bits processed on a single line can be set separately, the LC8213K
supports encoding or decoding the data for a subsection of the source document.
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.
s Anyone purchasing any products described or contained herein for an above-mentioned use shall:
ΠAccept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and
distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:
 Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on
SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.
s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of September, 1997. Specifications and information herein are subject to
change without notice.
No. 5753-5/5