PCL-818 Series User Manual
42
Appendix B Block Diagram
B.1 PCL-818HD/HG
B.2 PCL-818L
8254
Counter # 0
Counter # 1
Counter # 2
CLK 1
CLK 2
Out 1
Out 2
Address Bus
PC
BU
S
DM A Signals
IRQ Signals
EO
C
Ext Trig
Analog
Input
12-bit A/D
Converter
Sample
& Hold
Prog. Gain
Amplifer
1 K W ord
FIFO
Control/Status
Logic
Counter 0 CLK
Counter Gate
10MHz
OSC
Divider
100KHz
1M
H
z
10
MH
z
:
Register
Select
Status
Address
Decoder
Data
Buffer
CPLD
Intermal Data Bus
D/A Output
Digital
Input
Digital
Output
16-bit
Digital Out
:
16-bit
Digital In
12-bit D/A
Converter
:
MUX
16 S/E
or
8 Diff
:.
Channel
Scan Logic
Trigger
Logic
Data
MUX
RAM
DMA
Logic
IRQ
Logic
8 2 5 4
C o u n te r # 0
C o u n te r # 1
C o u n te r # 2
C L K 1
C L K 2
O u t 1
O u t 2
A d d re ss B u s
PC
B
U
S
E xt T rig
A n alo g
In p u t
C o u n te r 0 C L K
C o u n ter G a te
1 0 M H z
O S C
D ivid e r
1 0 0 K H z
1MH
z
10M
H
z
:
R e g is te r
S e le ct
S ta tu s
A d d re s s
D e c o d e r
C P L D
In te rm a l D a ta B u s
D /A O u tp u t
D ig ital
In p u t
D ig ital
O u tp u t
:
:
:.
C h a n n e l
S ca n L o g ic
T rig g e r
L o g ic
D a ta
M U X
D M A
L o g ic
IR Q
L o g ic
EOC
1 2 -b it A /D C o n ve rte r
w ith
S a m p le a n d H o ld
P ro g . G a in
A m p life r
R A M
M U X
1 6 S /E
o r
8 D iff.
1 6-b it
D igita l O u t
1 6-b it
D ig ital In
12 -b it D /A
C o n v erter
D a ta
B u ffe r
D M A S ig n a ls
IR Q S ig n a ls
Summary of Contents for PCL-818 Series
Page 1: ...PCL 818 Series 12 bit ISA Multifunction Card User Manual ...
Page 14: ...PCL 818 Series User Manual 6 Figure 1 1 Installation Flow Chart ...
Page 28: ...PCL 818 Series User Manual 20 ...
Page 45: ...2 APPENDIX A Specifications ...
Page 49: ...2 APPENDIX B Block Diagram ...
Page 51: ...2 APPENDIX C Register Structure Format ...
Page 71: ...2 APPENDIX D Calibration ...