Key facts
- Brand
- RAiO
- Model
- RA8815
- Industry
- Industrial
- Documents
- 9
- Languages
- ZH · EN
- Last added
- 2012-01-21
Start here
RAIO RA8815 Built-in 256KByte Word ROM User Manual
The RA8815 contains a built‑in 256 KByte word ROM that stores Chinese, numeric, English, Japanese, European and Latin fonts. Two model variants exist: RA8815G‑T with Traditional Chinese (BIG5) mapping and RA8815G‑S with Simplified Chinese (GB) mapping. Chinese characters are displayed in a 16×16 pixel area (actual 15×15).
The device also provides large (8×16 pixel, 1024 characters) and small (8×8 pixel, 512 characters) ASCII font tables. Selection of the large ASCII tables is controlled by the ASCS bit in register REG[03h] (ASCS=0 selects Table 1, ASCS=1 selects Table 2). Programming notes explain how to map external character codes to the internal tables. This manual is written in Chinese.
RAiO RA8815 specifications
| Built‑in ROM size | 256 KByte |
|---|---|
| Model variants | RA8815G‑T (Traditional Chinese), RA8815G‑S (Simplified Chinese) |
| Chinese font display size | 16×16 pixel (actual 15×15) |
| Large ASCII font size | 8×16 pixel (normal), 7×13 pixel (bold) |
| Small ASCII font size | 8×8 pixel (normal), 5×7 pixel (bold) |
| Number of large ASCII characters | 1024 |
| Number of small ASCII characters | 512 |
All RAiO RA8815 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
How to use the product for one specific task, with worked examples.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What are the two model variants of the RA8815 and which language sets do they support?
RA8815G‑T uses Traditional Chinese (BIG5) mapping, while RA8815G‑S uses Simplified Chinese (GB) mapping.
How do you select between the large ASCII font tables?
Set the ASCS bit in register REG[03h] MWMR: ASCS=0 selects Table 1, ASCS=1 selects Table 2.
What LCD panel size does the RA8815 support?
It supports a 128 × 33 pixel LCD panel.
What is the operating voltage range for the RA8815?
The chip operates from 2.5 V to 3.6 V.
What LCD panel size does the RA8815 support?
The RA8815 can drive LCD panels up to 128 × 33 pixels.
What is the operating voltage range for the RA8815?
The device operates from 2.5 V to 3.6 V.