4-3
UP-D70XR
b) Address map
All firmwares are stored at IC112 (flash memory) on the SY-270 board. Address 00000H through
3FFFFH are initial data and they stores the program for controlling the unit operation and firmware
rewriting as shown below.
The firmwares are stored at address 40000H to 7FFFFH. These territories are rewritten by every
grading up the version.
Just when the power is turned to on by control line B2 from CPU, A18 of IC112 is L, after that, it
becomes to H. This is moved to the firmware.
Programs of SY-270 board, program data transfer to IF-610 board and FMY-15 board and gamma
correction data are stored at each territory as shown below, and is switched by control line B0 and B1
from CPU.
For detail of SY-270 board address map is shown below.
0000H through F3FFH
Program
F400H through F5FFH
Control line s=0 : Gamma selection (PQC IC)
s=1 : VDC IC
F600H through F6FFH
Control line s=0 : GRAY SRAM
s=1 : PQC IC
F700H through F703H
IC105 (bus control)
F710H through F713H
IC106 (motor/sensor)
F720H
LCD
F730H through F731H
Average resistance value
F740H
IC113 (color switching of GRAY SRAM)
F750H
IC106 (sensor)
F780H through FF7FH
Reserve
F780H through FF7FH
2kB SRAM
FF80H through FFFFH
I/O port
F400H through F5FFH and F600H through F6FFH are switched by control line S from CPU.
SY-270 program
FMY-15 program
IF-610 program
Gamma correction data
00000H (40000H)
10000H (50000H)
18000H (58000H)
20000H (60000H)
30000H (70000H)
38000H (78000H)
Initial data
Firmware
00000H
3FFFFH
40000H
7FFFFH
Содержание UP-D70XR
Страница 1: ...DIGITAL COLOR PRINTER UP D70XR SERVICE MANUAL Volume 1 1st Edition ...
Страница 4: ...2 UP D70XR 6 Troubleshooting 6 1 Mechanical Section 6 1 6 2 Electrical Section 6 3 ...
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Страница 27: ...1 21 UP D70XR 80 Divers Sony Corporation Printed in Japan ...
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