DP-2310, DP-3010 (serv.man2) - Panasonic Copying Equipment Other Service Manuals (repair manual). Page 9

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1. System Configuration

The SPC PC Board controls all mechanical drivers for the Scanner and Printer.
The 16-bit CPU consist of Gate Array, F-ROM for Programming, SRAM for Work
and IPC PC Board for the Finisher Interface.

2. SC PC Board Interface

The Serial and Parallel Communication Ports used to interface the following devices.

•  Serial Interface

SPCRXD: Sends data to SC PCB
SPCTXD: Receives data from SC PCB
IICSDA: Sends and Receives data for Program Updating
IICSCL: Sends and Receives data clock for Program Updating

•  Parallel Interface for Scanner

pSENTIM: Main Scan Synchronous Signal
pVREQ: Sub Scan Synchronous Signal
nSREQ: Scan Enable Signal
nSACK: Request Shading Signal

•  Parallel Interface for Printer

nPRDY: Print Ready
nVRDY: Request Print Ready
nPACK: Ready for Paper Feed
nATT : Printer Status Signal
nDUPACK: Ready for Duplex Paper Feed 
nPVSYNC: Vertical Synchronous Signal
pPRNT: Print data
pBD_A: Line Synchronous data
pSPCRST: Reset Signal
nPRGDWN: Program Download Signal

CPU
IC2

M30802

GATE ARRAY

IC6

DZAC000293

FLASH ROM

IC3

LH28F400BVE

(512kB)

SRAM

IC4

LC35256

(32kB)

SRAM

IC5

LC35256

(32kB)

IPC BOARD

CNP725

A0~7
18,19

A0~19

D0~15

A1~18

A1~15

A1~15

D0~15

D0~15

D0~7

D8~15

D0~7

A0~7

nRD
nWRL
nWRH
nCS0
nCS1
nCS2

nCS3

nRD
nWRL
nWRH

nCS

nOE
nWE

nCE

nOE
nWE

nCE

nOE
nWE

nCE

nRD
nWR

nCS