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5-6
Box PC 820 / PC FI45 V2, Manual
A5E00051531-03
Pin
Type
Signal name
Pin
Type *
Signal name
C9
–MEMR
I/O
D9
DRQ 0
I
C10
–MEMW
I/O
D10
–DACK5
O
C11
SD 08
I/O
D11
DRQ 5
I
C12
SD 09
I/O
D12
–DACK6
O
C13
SD 10
I/O
D13
DRQ 6
I
C14
SD 11
I/O
D14
–DACK7
O
C15
SD 12
I/O
D15
DRQ 7
I
C16
SD 13
I/O
D16
+ 5V
V
CC
C17
SD 14
I/O
D17
–MASTER
I
C18
SD 15
I/O
D18
0 V
GND
Under normal conditions, the signals –SBHE, LA17 – LA23, –MEMR and MEMW
are operated as outputs (sending from the CPU). Only CPU boards which are
suitable for use as a master CPU for system bus access send and receive these
signals. A minus sign “–” in front of the signal name shows that the signal is LOW
active.
Bus Board
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Содержание SIMATIC Box PC 820
Страница 138: ...4 14 Box PC 820 PC FI45 V2 Manual A5E00051531 03 Direct Key Module Optional with FI45 S t o c k C h e c k c o m ...
Страница 166: ...9 4 Box PC 820 PC FI45 V2 Manual A5E00051531 03 CD ROM Drive S t o c k C h e c k c o m ...
Страница 174: ...11 6 Box PC 820 PC FI45 V2 Manual A5E00051531 03 Connecting Cables S t o c k C h e c k c o m ...
Страница 192: ...Glossary 14 Box PC 820 PC FI45 V2 Manual A5E00051531 03 Glossaryx S t o c k C h e c k c o m ...
Страница 196: ...Index 4 Box PC 820 PC FI45 V2 Manual A5E00051531 03 Index S t o c k C h e c k c o m ...