Specifications

Chapter 7. I/O Facilities
105
7.1.6 VRAM
The INP function may read the VRAM data. The OUT statement writes data into the VRAM so
that graphics may be displayed on the LCD dotwise.
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Specifying an address bytewise
An address on the LCD may be specified bytewise by giving a port number in the OUT state-
ment and
INP function. The entry range of the port number is as follows:
Port numbering system counts, starting from the top left corner of the LCD to the right bottom
corner.
Series Entry range of the port number
BHT-100 10h to 1DBFh
10h D7h
D8h 19Fh
1A0h 267h
268h 32Fh
588h 64Fh
4C0h 587h
3F8h 4BFh
330h 3F7h