HS-80C85RH
Waveforms (Continued)
T2
T2
THOLD
THOLD
T1
CLK
HOLD
tHDS
tHACK
tHDH
HLDA
BUS
tHABF
tHABE
(ADDRESS, CONTROLS)
FIGURE 5. HOLD
T1
T2
TWAIT
T3
T3
CLK
tLCK
tCA
A8-15
ADDRESS
tRAE
tAD
tRDH
DATA IN
ADDRESS
tLA
AD0-AD7
tLL
tCL
tAFR
tLDR
ALE
tAL
tRD
tCC
tLC
RD/INTA
tLRY
tAC
tARY
tRYS tRYH
tRYS tRYH
READY
NOTE 1: READY MUST REMAIN STABLE DURING SETUP AND HOLD TIMES.
FIGURE 6. READ OPERATION WITH WAIT CYCLE (TYPICAL) - SAME READY TIMING APPLIES TO WRITE
T1
T2
T3
T4
T5
T6
THOLD T1
T2
A8-15
A0-7
CALL INST.
BUS FLOATING†
RD
INTR
tHABE
INTR
tINS
tINH
HOLD
tHDH
tHDS
HLDA
tHABF
tHACK
† IO/M IS ALSO FLOATING DURING THIS TIME.
FIGURE 7. INTERRUPT AND HOLD
Spec Number 518054
9
INTERSIL [ Intersil ]
