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Section 4
Circuit Description and Overall Block Diagram
4-1. Circuit Description
The UCP-8060 mainly consists of the following three boards.
. CPU-352 board that controls the whole circuit of UCP-8060
. PS-635 board that performs the AC/DC power conversion and the input and output to and from external
equipment
. MB-978 board that interfaces with the display device of an LCD module and with the input device of a
touch panel or switch
All boards in the UCP-8060 are connected to the MB-978 board.
The boards directly connected to the MB-978 board are as follows; the PS-635 board, the KEY-537 board
on which function buttons are mounted, the VR-282 board on which control knobs are mounted, the
TouchEngine board on which TouchEngine is mounted, an inverter unit for LCD backlight, and a touch
panel (resistance film-type).
The boards connected to the MB-978 board through the SW-1098 board are as follows; the LED-397
board on which a system indicator and status indicator are mounted, the SW-1099 board on which a jog
roller and jog L/R button are mounted, and a Memory Stick connector.
The LCD module (640 x 480 dots, TFT color) is connected to the MB-978 board through a connector
conversion board (CN-2284 board).
The SW-1098 board has the selection buttons.
PS-635 board
The PS-635 board is the power board that converts the input AC power into a power of +5 V DC.
The converted +5 V DC power is sent to the MB-978 board.
The RS-232C connector (CN102), EXT (EXTENSION) PANEL1 connector (CN103), and EXT
PANEL2 connector (CN104) are mounted on the PS-635 board.
The EXT PANEL1 connector, EXT PANEL2 connector, and a switch (S101) are used for extension in
the future.
The PS-635 board converts the RS-232C communication data sent through the CPU-352 and MB-978
boards into a standards signal using the RS-232C transceiver (IC101) and interfaces with the external
equipment through the RS-232C connector. The PS-635 board also converts the RS-422 communication
data using the RS-485 transceiver (IC102) and interfaces with the external equipment through EXT
PANEL1 and EXT PANEL2 connectors.
The EXT PANEL2 connector supplies a power of +5 V DC/0.5 A to the connected equipment.
The PS-635 board has a buzzer (BZ101). An operation sound and warning sound are generated according
to the control of the MB-978 board.
CPU-352 board
The CPU-352 board has CPU, memory, and FPGA and controls the whole UCP-8060.
CPU (IC102)
CPU processes a Java program as the optimized Java chip at high speed.
CPU internally quadruples an external clock of 20 MHz and operates with a clock frequency of 80 MHz.
CPU controls FPGA through the I/O bus (40 MHz).
UCP-8060
Memory
On the CPU-352 board, three types of ICs (flash memory, RAM, and EEPROM) are used for memory.
The capacity of flash memory (IC203) is 32 M bits. The flash memory stores programs, set data, and
MAC address. Programs and display data are transferred to RAM (IC205 and IC206) from the flash
memory. The memory capacity of RAM is 8 M bytes in total of IC205 and IC206. MAC address is
stored in EEPROM (IC204). In the case that the MAC address data in the flash memory is lost, it is
restored using the MAC address in EEPROM.
FPGA (IC301)
FPGA has Ethernet, RS-232C, and RS-422 communication functions. It is controlled from CPU via the
I/O bus. Ethernet communication data is input and output from the DATA LAN connector (CN401) on
the MB-978 board through the MB-978 board. RS-232C communication data is input and output from
the RS-232C connector (CN102) on the PS-635 board through the MB-978 board. RS-422
communication data is input and output from an EXT PANEL1 connector (CN103) and EXT PANEL2
connector (CN104).
Real-time clock function
The real-time clock function is incorporated into CPU. This function is activated using a crystal oscillator
(X201). It is backed up by a battery backup circuit (Q101, Q102, D102, and C101) on the MB-978 board.
MB-978 board
The MB-978 board interfaces with the display device of the LCD module, with the input device of the
touch panel and switch, and with TouchEngine.
The MB-978 board mainly controls the function buttons, adjustment control knobs, touch panel, switches,
LCD module, Memory Stick, watchdog timer, buzzer, and TouchEngine and interfaces with the CPU-352
board.
In the interface block of adjustment control knobs, FPGA directly reads the signal of the adjustment
control knob (optical rotary encoder) on the VR-282 board.
In the control block of the touch panel, the X and Y coordinates sent from the touch panel as analog data
are converted into digital data using an A/D converter (IC304) and read into FPGA. The information on
the contact of a touch panel is also converted in the same way using an A/D converter and read into
FPGA via a dedicated control line (SEL1).
In the control block of TouchEngine, the reference voltage of the driver circuit (IC501) is controlled and
changed by FPGA, and the sensitivity of TouchEngine is adjusted according to the voltage level.
In the control block of the LCD module and inverter, the image data sent from the CPU-352 board is
converted using FPGA and the LCD module is controlled via the CN-2284 board. The brightness of
backlight is adjusted by converting a signal from digital to analog using IC301 and by changing the
voltage applied to the control pin (BRTH) of an inverter unit.
Buttons and switches (function button, jog roller switch, and selection button) are controlled using a
switch matrix by a dynamic scan system.
The volume of a buzzer is adjusted when the signal from FPGA is converted from digital to analog using
IC301.
In a DATA LAN interface block, the Ethernet communication data sent from the CPU-352 board is input
and output through PHY IC (IC401) from CN401 to the external equipment.
A power of +20 V for the TouchEngine driver circuit (IC501) and buzzer volume adjustment circuit
(IC301) is generated from +5 V DC_B using the step-up DC/DC converter (IC502).
4-1 (E)
4-1 (E)
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