Rainbow-electronics DS1996 Manuel d'utilisateur télécharger pdf (Page 6)

DS1996

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Write Scratchpad Command [0FH]

After issuing the write scratchpad command, the master must first provide the 2-byte target address,

followed by the data to be written to the scratchpad. The data will be written to the scratchpad starting at

the byte offset (T4:T0). The ending offset (E4: E0) will be the byte offset at which the bus master has

stopped writing data.

Read Scratchpad Command [AAH]

This command is used to verify scratchpad data and target address. After issuing the read scratchpad

command, the master begins reading. The first two bytes will be the target address. The next byte will be

the ending offset/data status byte (E/S) followed by the scratchpad data beginning at the byte offset (T4:

T0). The master may read data until the end of the scratchpad after which the data read will be all logic

1’s.

DS1996 MEMORY MAP Figure 5

ADDRESS REGISTERS Figure 6

1 2 3 4 5 6 7 8 9 10 11 ... 17 18

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Rainbow-electronics DS1996 Manuel d'utilisateur Page 6