D63711 NEC, D63711 Datasheet - Page 56

• Manufacturer Part Number: D63711
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• Manufacturer: NEC

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(3) 6/8 conversion
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In MODE = 2 (Program Area), a constituent unit of data is 6 bits. If 8-bit mode is specified at this time, data
output from the TSO pin is 6-bit data justified on the LSB side (the upper section of Figure 3-5).
If 6/8 conversion is specified, the 6-bit units of data are compressed and output (the lower section of Figure 3-5).
Therefore, the time needed to read the data is shortened.
In 6/8 conversion based on SZ = 0, all data except 18H in the RAM is compressed. If you wish to read out the
Item bit using a microcontroller and judge the possession of interleaving, specifying SZ = 1 is recommended.
6-bit mode
8-bit mode
Figure 3-5. Data Compression in 6/8 Conversion
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Preliminary Product Information S14470EJ1V1PM00
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PD63711