IBM RT Series Hardware Reference Manual page 365

1/0 ADDR MSB LSB
D15
DO
'001012'
xxxx-------------
'001092'
xxxx-------------
'001112'
xxxx-------------
- DX1=12 -
I
BAMDA IMAGE STRUCTURE
o
1 1
o
'001014
'001094
'001114
TNL SN20-9844 (March 1987) to 75X0235
MSB
DO
LSB
D15
- - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - -
DX2
=
19
DX +1
=
31 BITS
41
'001016'
'001096'
'001116'
+x
MSB LSB
DO
- - -xx
DY
- - -xx
+
1
=3
- - -xx
I
12
: : : : : : :1
L . . . - - -_ - - - - - '
14
+y
Figure 34. TDDMA I/O Copy Example
(XD YD)
1 s
Extended Monochrome Graphics Adapter 53