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1. System CPU
The System CPU (V850E/MA1) is a 32-bit RISC (Reduced Instruction Set Computer) type of CPU and
DMA Control, Serial Communication Port, Timer Control, Interrupt Control, DRAM Control, and I/O Port
are integrated into Single (1) Chip. Mask ROM (128k byte) is already installed and it controls the Real
Time OS, High Speed managing Task and Boot Programming.
DMA Control, Serial Communication Port, Timer Control, Interrupt Control, DRAM Control, and I/O Port
are integrated into Single (1) Chip. Mask ROM (128k byte) is already installed and it controls the Real
Time OS, High Speed managing Task and Boot Programming.
• DMA Control
It has a 4ch DMA Control and is used to transfer data between the following devices.
Image Data Memory (DRAM)
Image Data Memory (DRAM)
←→
Image Data Memory (DRAM)
• Serial Communication Port
It has a 2ch Serial Communication Port and is used to interface the following devices.
CPU
CPU
←→
Panel Unit (Panel CPU)
• Timer Control
It is used to program the standard timer, the creation of the charge AC frequency.
• Interrupt Control
It controls receipt & transfer to CPU the interrupt from SHINE, Modem.
• S-DRAM Control
It generates S-DRAM Control Signal and Refresh Control when the power is ON.
• I/O Port
It is used to control lines, reset control around LSI, and so on.
2. Integrated Gate Array (SHINE)
• DZAC000273 (SHINE) is a Highly Integrated Gate Array which provides the function of System
Control, Scanning Control, Recording Data Control, LP Engine Control, PC Interface.
• 2-1. System Control Block
•DMA Control
It is used to transfer data between the following devices.
Scanning Control LSI (MN860741)
Scanning Control LSI (MN860741)
→
Memory (S-DRAM) : Scanning Route
Memory (S-DRAM)
→
LP : Recording Route
PC
←→
Memory (S-DRAM) : PC I/F Route
Memory (S-DRAM)
←→
Memory (S-DRAM) : Editing Route
•S-DRAM Control
It generates S-DRAM Control Signal. It shares S-DRAM with the CPU by using the Bus Hold
Mode function of the CPU.
Mode function of the CPU.
•System Control Signals Generation
It generates various system control signals for the CPU assistance.
2-2. Scanning Control Block
•CIS Control Signal Generation
It generates CIS control signals.
CIS stands for Contact Image Sensor, which is compact scanning Device.
CIS stands for Contact Image Sensor, which is compact scanning Device.
•Black Shading Correction
To suppress dispersion of CIS pixel elements, it compares with a black signal (LED is off) as a
base level, it corrects analog data level by controlling values of external resistors.
base level, it corrects analog data level by controlling values of external resistors.
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