UP
DOWN
B
A
(Shown wit h DTR = 2 )
CNTR
FFFFFFE FFFFFFF
CY
FFFFFFF
FFFFFFC FFFFFFD
0
2
1
0
t 9
t 1 0
DFLG/
CNTR DISABLED
CNTR DISABLED
t 1 1
INDX/
(LOAD CNTR)
CNTR ENABLED
NOTE: CNTR values are indicated in 2-byte mode
FIGURE 9. SINGLE-CYCLE, NON-QUADRATURE
B
A
DOWN
UP
(Shown wit h DTR = 3 )
CNTR
0 0 0 0 0 1 0 0 0 0 0 2 0 0 0 0 0 3 0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 3
0 0 0 0 0 2
0 0 0 0 0 1
0 0 0 0 0 0
0 0 0 0 0 2
0 0 0 0 0 1 0 0 0 0 0 0
DFLAG/
BW
CMP
NOTE: CNTR values are indicated in 1-byte mode
FIGURE 10. MODULO-N, NON-QUADRATURE
B
DOWN
UP
A
(Shown wit h DTR = 3 )
CNTR
DFLAG/
000002
000000 000001
000003
CMP
000002 000001
000000
CMP
CMP
BW
CMP
BW
BW
NOTE: CNTR values are indicated in 1-byte mode
FIGURE 11. RANGE-LIMIT, NON-QUADRATURE
7366R-050106-10
LSI [ LSI COMPUTER SYSTEMS ]
