Intermec 073295-001 User Manual
Chapter 4 — Theory of Operation
System Architecture
The CK30 platform is a 32-bit 3.3V system, with the processor and FPGA
cores running at 1.3V and 2.5V, respectively. The design is contained on a
single main PCB, except for the following modules:
cores running at 1.3V and 2.5V, respectively. The design is contained on a
single main PCB, except for the following modules:
• The keypad is a separate, replaceable module that attaches to the
exterior of the product, connected to the main PCB through a flex
cable.
cable.
• The LCD and drivers are contained within a separate display module,
connected to the main PCB through a flex cable.
• The two speakers are mounted on a small PCB connected to the main
PCB through a wired cable.
• Radio and Ethernet options are implemented with Mini PCI Type 3A
cards.
MA(25:0) MD(31:0) Mem Control Signals
FLASH
Keypad
Matrix
JTAG
Port
Power enables
Module enables
Module enables
SDRAM
232 buf
LCD
Backlight
Driver
Bias
Suppl y
HCR
Regs
FPGA
Scanner
I/F
Mini-PCI
Host
Bridge
Scanner
Conn
Scan
Engine
Mini-PCI
Slot
Mini-PCI
Radio
or
Ethernet
GPIO
Keypad
Conn
User
LEDs
SD Slot
Dock
Conn
Conn
Touch
Panel
Conn
Conn
Spkr
Conn
Touch
Panel I/F
3.3V
Suppl y
5V
Supply
Supercap
Suppl y
Supercap
Charger
Debug Board
with:
with:
AC97
Codec
Audio
Driver
Driver
Bluetooth
Module
Main
Battery
Conn
Supercap
System 3.3V
System 5V
1.3V CPU
Core Supply
2.5V FPGA
Core Supply
MIC
Conn
I2C I/F
ST UART
Power
Supply
Controller
IO Key
Low Batt
Detect
Speakers
LCD Conn
Battery,
Supercap,
Temperature
Monitoring
Low 3.3V
POR
MCLR
Other signals
of interest
of interest
32kHz
OSC
3.68MHz
OSC
MMC I/F
Memory
Controller
I/F
GPIO
FF UART
Power
Management
Pins
BT UART
PWM1
AC97 I/F
SPI I/F
LCD
I/F
JTAG Pins
PXA255
Processor
Dashed indicates optional feature
(Color or Monochrome)
Battery
Status LED
Debug
Conns
Conns
- Ethernet controller
- Debug LEDs
- Logic Analyzer
connectors
- Debug LEDs
- Logic Analyzer
connectors
PWM0
Enables
from HCR
from HCR
Ethernet
Scan I/F
USB I/F
Reset
Resume
Logic
GPIO_0,
GPIO_1
I/O
Optional
10-pin
Tethered
Scan Port
10-pin
Tethered
Scan Port
CK30 High-Level Block Diagram
40
CK30 Handheld Computer Service Manual