Oki Pacemark 4410 Service Handbook

Also see for PACEMARK 4410: User guide Specifications Maintenance manual Service manual

Contents

40496501TH Draft Version 19(7) NHDC LSI(IC27: TC190G08CF-7036)This LSI controls timer, interruption, memories, printing, external interface, motor driveinterface.(a) Timer controlIt controls the watchdog timer for detecting any out-of-control program, baud rategenerator for setting the baud rate of the serial interface, and pulse generation timer forAG plus count.(b) Interruption controlIt controls LSI inside interruptions, external interruptions and interruptions from anexternal interface as outputs for the MPU.(c) Memory controlDRAM and SRAM control, chip select output control of ROM, flash memory and MUPIS,and bank switch control for expanding their memory spaces.(d) Print controlIt creates a print timing corresponding to the print DPI to control the possition and printcorrection for pins.This also controls the print Mask and DMAC which reads print data from the memory andtransmits it to the print output buffer.(e) External interfaceIt controls various interfaces for main LSI, IEEE1284, serial, MUPIS, OpePaneLSI,EEPROM.(f) Motor drive interfaceEach control of OVDV pulse generation for AG motor, generation of pulse for switchingribbon motor phase, and OVDV pulse generation for LF motor.(8) Sub LSI (IC17, IC18: MSM72V017)This LSI is the I/O port LSI which controls the input/output of various controlling signals withcommand inputs from the MPU.(a) Sub LSI #1 (IC17: MSM72V017)Input/output control for controlling signals to various sensors, FAN controlling signals,sensor slice level controlling signals, AG motor controlling signals, and LF motorcontrolling signals.(b) Sub LSI #2 (IC18: MSM72V017)Input/output control for controlling signals to various sensors, SP motor current control-ling signals, external interface controlling signals, TR motor controlling signals, bail motorcontrolling signals, cutter motor (for optional connection) controlling signals.(9) Serial I/F LSI (IC35: 85L30)This LSI is the serial I/F LSI which controls the input/output of serial I/F controlling signals withcommand inputs from the MPU.