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

1.3.6

Optional Serial I/O

<HL-730/730Plus ONLY>
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

<HL-720>
The EEPROM is XL24C01AF type of a two-wire method with a 128 x 8 bits
configuration.
<HL-730/730Plus>
The EEPROM is XL24C01AF type of a two-wire method with a 128 x 8 bits
configuration.
Fig. 2.14
Fig. 2.15
Fig. 2.16
II-16