Intermec CK30

Chapter 4 — Theory of Operation
Using the Scanner Interface Signal Set - Part 1 (continued)
Signal Name
Source/
Destination 2D Imager usage
DBP scanner
usage
Tethered undecoded
scanner usage (10-pin
only)
IMAGER_PIXCLK FPGA IO
Pixel clock from
scanner
Data valid on rising
edge
Beep/Scanner present
0 = no scanner installed
1 = scanner installed
TRIG_AIM* HCR out Enable aiming LED
0 = disable
1 = enable
EV10 1D/2D select.
0 = 2D
1 = 1D
SE900 aim beam
Auto-Detect Enable
0 = enable
1 = disable
SCAN_TRIG* FPGA_IO
Modulate
illumination LEDs
Not used on
IT4000
SE900 config bit 2 Trigger from scanner
Active-low
IMAGER_SD0-7 FPGA in
8-bit Imager pixel
data
I2C_CLK, I2C_DAT PXA250 IO I2C imager control
Using the Scanner Interface Signal Set – Part 2
Signal Name
Source/
Destination
SPI Scanner
Usage EL10 Usage
Tethered
Decoded Scanner
Usage ( 10-pin only )
Decoded
Scanner ( E1025 )
Usage
SCAN_PWR_EN* U11 out
Enable scanner
power
0 = enable
1 = disable
Enable scanner
power
0 = enable
1 = disable
Enable scanner
power
0 = enable
1 = disable
Enable scanner
power
0 = enable
1 = disable
ILLUM_LASEN_RT
S
FPGA_IO Laser enable
0 = enable
1 = disable
Laser enable
0 = enable
1 = disable
RTS to scanner
Active-low
RTS to scanner
Active-low
SCAN_FLASH_EN* U11 out Scan enable
0 = enable
1 = disable
Scan enable
0 = enable
1 = disable
Scanner reflash
enable
Active-high
SOS FPGA in
SOS (Start of
Scan) toggles at
start of each
scan
SOS (Start of
Scan) toggles at
start of each
scan
CTS from scanner
Active-low
CTS from
scanner
Active-low
DBP (Video) FPGA in
SPI data from
scanner
DBP (Video)
0 = black
1 = idle, white
RxD from scanner
0 = 0 or space state
1 = 1 or marking
state
RxD from
scanner
0 = 0 or space
state
1 = 1 or marking
state
CK30 Handheld Computer Service Manual 77