Intermec 073295-001 Manuel D’Utilisation
Chapter 4 — Theory of Operation
Using the Scanner Interface Signal Set - Part 1 (continued)
Signal Name
Source/
Destination
Destination
2D Imager usage
DBP scanner
usage
usage
Tethered undecoded
scanner usage
scanner usage
(10-pin
only)
IMAGER_PIXCLK FPGA
IO Pixel clock from
scanner
Data valid on rising
edge
edge
Beep/Scanner
present
0 = no scanner installed
1 = scanner installed
1 = scanner installed
TRIG_AIM*
HCR out
Enable aiming LED
0 = disable
1 = enable
1 = enable
EV10 1D/2D select.
0 = 2D
1 = 1D
0 = 2D
1 = 1D
SE900 aim beam
Auto-Detect Enable
0 = enable
1 = disable
1 = disable
SCAN_TRIG* FPGA_IO
Modulate
illumination LEDs
illumination LEDs
Not used on
IT4000
IT4000
SE900 config bit 2
Trigger from scanner
Active-low
IMAGER_SD0-7
FPGA in
8-bit Imager pixel
data
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 (
Decoded Scanner
Usage (
10-pin only
)
Decoded
Scanner (
Scanner (
E1025
)
Usage
SCAN_PWR_EN* U11
out Enable scanner
power
0 = enable
1 = disable
1 = disable
Enable scanner
power
power
0 = enable
1 = disable
1 = disable
Enable scanner
power
power
0 = enable
1 = disable
1 = disable
Enable scanner
power
power
0 = enable
1 = disable
1 = disable
ILLUM_LASEN_RT
S
S
FPGA_IO
Laser enable
0 = enable
1 = disable
1 = disable
Laser enable
0 = enable
1 = disable
1 = disable
RTS to scanner
Active-low
Active-low
RTS to scanner
Active-low
Active-low
SCAN_FLASH_EN*
U11 out
Scan enable
0 = enable
1 = disable
1 = disable
Scan enable
0 = enable
1 = disable
1 = disable
Scanner reflash
enable
Active-high
enable
Active-high
SOS
FPGA in
SOS (Start of
Scan) toggles at
start of each
scan
Scan) toggles at
start of each
scan
SOS (Start of
Scan) toggles at
start of each
scan
Scan) toggles at
start of each
scan
CTS from scanner
Active-low
Active-low
CTS from
scanner
Active-low
scanner
Active-low
DBP (Video)
FPGA in
SPI data from
scanner
scanner
DBP (Video)
0 = black
1 = idle, white
1 = idle, white
RxD from scanner
0 = 0 or space state
1 = 1 or marking
state
1 = 1 or marking
state
RxD from
scanner
0 = 0 or space
state
1 = 1 or marking
state
scanner
0 = 0 or space
state
1 = 1 or marking
state
CK30 Handheld Computer Service Manual
77