Canon 3260 manual Cpu, Video contoroller PCB Block Diagram

CHAPTER 2

Video contoroller PCB Block Diagram

for option

for network board

(72pin, 2slot)

(50pin, PSIO)

<J4>

<J2/3>

<J11>

Extension I/O

Firm DIMM

ROM DIMM

MASK ROM

ROM Cont.

ROM Cont.

(4MB)

I/O Cont.

JTAG

CPU

ROM Cont.

A [26:8]

for hard disk

PPC603e (100/33)

[23, 17:2]

(44pin, 2.1GB)

LVC827 ✕ 2

Hard disk I/O

D [31:0]

IOA

nRESET

A [31:0]

I/O Cont.

[4:2]

(33.3MHz)

LVCR2245 ✕ 2

IOA

IOA [23, 17:2]

RESET

nA0E

nD0E

IOD [15:0]

CPUCLK

LVTH245 ✕ 4

LVTH245 ✕ 4

nGCS

LVCR2245 ✕ 2

[6:2]

[11:0]

<J8>

IOA

IOD

AD [31:0]

I/F

for option controller

<J9>

I/O Cont.

Option controller

(20pin)

Cont.

nA8 LSYNC, VCLK

host computer

(36pin)

IEEE1284

Buffer

ASIC

nA8 VDO

EEPROM

to

AIR

<J1>

LVCR2245 ✕ 2

X´TAL

X´TAL

nVDO

MA [10:0], nCAS [3:0], nWE

(14.37038MHz)

(66.6666MHz)

MD [31:0]

DC controller

nRAS [7:0]

Engine

(48pin)

Note

: Operates at 5V

to

: 5V signals

RAM (8MB)

RAM DIMM

<J6/7>

for option

(72pin, 2slot)

Figure 2-6-2

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