Read Sharp ER-A880 (serv.man2) Service Manual online
•
Sub CPU read timing chart
Fig. 10
•
Sub CPU write timing
Fig. 11
•
Sub DMA memory write timing
Fig. 12
•
MRD timing
Fig. 13
•
MWR timing
Fig. 14
•
CLK
Fig. 15
•
A8, A9, A10, A15 timings
Fig. 16
•
MSK, RSO timings
Fig. 17
•
TXC, TDI timings
Fig. 18
TAI
TIA
TRWK
TRDG
TRDH
A0, A1, A4, A5
IORQ
RDS
D0-D7
TAI
TIA
TWWK
TDWK
TWDK
A0, A1, A4, A5
IORQ
WRS
D0-D7
TAE L
TSTL
TS T T
TA K
TAK
T D Q
TD C L
TDC T
TWAG
TW AH
TLC G
TLC H
TMWG
T MW H
TEO G
TEO H
AEN
AST
IO/RD
WAIT
LCS
MWR
E
DAK01
DAK23
* LCSO remain high level
for DK2, 3
Φ
TMRG
TMRH
MREQ
RDS
MRD
TMWG
TMWH
MRE Q
WRS
MWR
CLK
TC
TWH
TWL
Φ
AEN
AST
D0-D7
A8, A9, A10, A15
TSDG
TSDH
TADG
Φ
TTCG
TDMG
T TC H
TDMH
TTRG
T TR H
DAK01
TCH
MSK
LCS
RS0
RS1
: Duringtransfer
: Transfer and
Φ
TC TG
TC TH
TTD G
TCIG
TCIH
TTD G
TXC
TXD
TDI
– 66 –
Click on the first or last page to see other ER-A880 (serv.man2) service manuals if exist.