Optional Serial I/O; Eeprom - Brother HL-720 - B/W Laser Printer Service Manual

1.3.6

Optional Serial I/O

The interrupt of serial I/O are input to the EXINT terminal of the ASIC, and are
recognized by the CPU. A 32-byte space for register is provided for this I/O, which are
read and written to by the CPU.
1.3.7

EEPROM

The EEPROM is X24C04F type of a two-wire method with a 512 x 8 bits configuration.
Fig. 2.8
Fig. 2.9
II-10