Sharp PC-1500 - Page 48

All and more about Sharp PC -1 500 at http:/lwww.PC-1500 .info
D at a bus
..1'
~ v
CPU
P<I>
Clock
~
TC 4042 X2
1l at ch I C)
@ SPU (Set PU)
Sets the general pur pose flip fl op PU.
No ch a nge tak es place in flags.
• Fo rm at
SPU
@ RPU (R eset PU)
•Op erati on
I - PU
Resets the general purpo se fli p fl op PU.
No change ta kes place in fl ags.
•F or mat
RPU
@ SPV (Set PV)
•Op eration
0 - PU
Se ts the general pur pose flipflop PV .
'o change ta kes pl ac e in fla gs.
•F or mat
SPV
@ RPV (Reset PV)
•Op eration
I - · PV
Resets the general purpo se fl ipfl op PY.
No cha n ge ta kes place in flags.
•
fo rmat
RPY
@) SOP (Set Dis P)
•Opera ti on
0 - PY
Sets
the I. CD on/ off comrol fl ipflop DI SP
• For mat
SDP
•Op eration
I - DISP
8·b il out put pO rl
On pa nern signal is ge nerated from the
CPU internal LCD b <ic kp la tc signal li n es
( H O ~ H7 ) .
43
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