Scanner - Digital Scanner User Manual

CANON Digital Galvano Scanner System
KP-1SM Series + GC-251
Users Manual 1.00
20
2.7.2 High-speed serial communication
To control the mirror to an arbitrary position by Marking or any other application, target position data
updated as required can be given to the controller by using high-speed serial communication.
By setting, the controller can be activated in the mode of tracking a target position specified by
high-speed serial communication. (For details, see 6-1, “Setting Activation Mode.”)
(Communication specifications)
Base clock (CLK) 2 MHz
Frame sync (FS) 100 kHz
Data (DAT) 20 bits (Position data: 16 bits)
Status (STS) 20 bits
Transmission system Differential signal
Signal level
5V-TTL, LVDS
(Selectable by the optional IF board)
For the support of other communication specifications, contact the Sales Department.
Timing Diagram
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CLK
FS
XDAT XData-1 XData XData +1
YDAT YData -1 YData YData +1
STS Status -1 Status Status +1
(Bit)
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XDAT C2 C1 C0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 P
YDAT C2 C1 C0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 P
STS S19S18S17S16S15S14S13S12S11S10S9S8S7S6S5S4S3S2S1S0
(Bit)
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XDAT D19 D18 D17 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
YDAT D19 D18 D17 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
STS S19S18S17S16S15S14S13S12S11S10S9S8S7S6S5S4S3S2S1S0
CLK Frequency : 2MHz
XDAT, YDA
T
(16bit Data) C2 .. C0 : Header ( un-used )
D15 .. D0 : Position Data ( Signed Integer data )
P : Parity ( un-used )
(20bit Data) D19 .. D0 : Position Data ( Signed Integer data )
STS S19 .. S0 : ( Status Table )
Input signal from PC : CLK, FS, XDAT, YDAT
Output signal from DRIV
E
:STS
2MHz
16bit
Data
20bit
Data