E202075_HD404889 Datasheet, PDF (172/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
Table 34 RAM Register Instructions (cont)
Operation
Exchange memory
and A
Exchange memory
and A
Exchange memory
and B
Mnemonic Operation Code
XMA
0 0 1 0 0 00 0 0 0
Function
M↔A
Words/
Status Cycles
1/1
XMAX
0 0 1 0 0 0 0 0 0 1 M↔A
X ↔ SPX
XMAY
0 0 1 0 0 0 0 0 1 0 M↔A
Y ↔ SPY
XMAXY
0 0 1 0 0 0 0 0 1 1 M↔A
X ↔ SPX, Y ↔ SPY
XMAD d
0 1 1 0 0 0 0 0 0 0 M↔A
2/2
d₉ d₈ d₇ d₆ d₅ d₄ d₃ d₂ d₁ d₀
XMB
0 0 1 1 0 0 0 0 0 0 M↔B
1/1
XMBX
XMBY
XMBXY
0 0 1 1 0 00 0 0 1
0 0 1 1 0 00 0 1 0
0 0 1 1 0 00 0 1 1
M↔B
X ↔ SPX
M↔B
Y ↔ SPY
M↔B
X ↔ SPX, Y ↔ SPY
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