Epson L-1000 Technical Manual page 167

APPENDIX
A.1.1 CPU µPD7810HG (4B)
The µPD7810/7811HG contains two 8-bit timer/counters, an 8-bit A/D converter, 256 bytes of RAM, and a
serial interface. A system can be constructed easily using this IC. The main features of this IC are as follows:
l 16-bit event counter
l
Standby function
l NMOS
Figures A-1 and A-2 illustrate the 7810/7811 HG microprocessor, and Tables A-2 through A-5 describe its
functions.
A-2
Figure A-l. µPD7810/7811 Pin Diagram
REV.-A
LQ-500/ L-1000