HD404889_03 Datasheet, PDF (168/197 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
XMA
XMAX
XMAY
XMAXY
XMAD d
XMB
XMBX
XMBY
XMBXY
Operation Code
0010000000
0010000001
0010000010
0010000011
0110000000
d₉ d₈ d₇ d₆ d₅ d₄ d₃ d₂ d₁ d₀
0011000000
0011000001
0011000010
0011000011
Function
M↔A
M↔A
X ↔ SPX
M↔A
Y ↔ SPY
M↔A
X ↔ SPX, Y ↔ SPY
M↔A
M↔B
M↔B
X ↔ SPX
M↔B
Y ↔ SPY
M↔B
X ↔ SPX, Y ↔ SPY
Words/
Status Cycles
1/1
2/2
1/1
Rev.6.00, Sep.08.2003, page 168 of 197