Genicom MatrixPrinter LA36 - Manual (Page 109)

5-22
The HDLSI(LSI 2: MBCU20050) has the following main functions:
Head pin magnet drive controller
Output port
*EXIOCS
*IOWRL
*IOWRH
*IORD
Address
decoder
TIMER1
A01~A05
CLK
Division
circuit
D00~D15
IN00~IN04
HDALM00~06
SPALMS
SPALML
LFALMS
LFALML
Alarm
detection
circuit
*POWST
*DVALM
I/O port
OUT00~07
FLYBK01~06
Flyback
controller
PD01~24
Print head
driver and
controller
Figure 5.21 MBCU20050 block diagram