T6K04
2001-03-13 19/30
Detail of Performance
●
X
−
address counter and Y (Page)
−
address counter
Fig.
11
shows a sample operating procedure for the X
−
address counter.
After Reset is executed, X
−
address becomes XAD = 0, then select X
−
counter / UP mode. Next set the
X
−
address to 62 by commanding SXE.
After data has been written to or read, the X
−
address is automatically incremented by one.
After X
−
counter / Down mode has been selected and data has been written to or read, the X
−
address is
automatically decremented by one.
When the X
−
counter is selected, Y
−
counter does not count up or down.
Fig.
11
Fig.
1
2 shows a sample operating procedure for the Y
−
address counter in the 8 bits words length mode.
After Reset is executed, Y (Page)
−
address becomes Page = 0, then select Y (Page)
−
Up mode and 8 bits
words length mode. After data has been written to or read, the Y (Page)
−
address counter is automatically
incremented by one.
After Y (Page)
−
counter / Down mode has been selected and data has been written to or read, the Y (Page)
−
address is automatically decremented by one.
When the Y (Page)
−
counter is selected, X
−
counter doesn’t count up or down.
