Key facts
- Brand
- Fairchild
- Model
- FCM8531
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 2
- Languages
- ZH
- Last added
- 2026-10-08
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Fairchild FCM8531 User Manual
This manual describes the complete instruction set of the FCM8531 microcontroller, including register, direct, indirect and immediate addressing modes, as well as the timing formulas for each operation. It also contains tables of opcode encodings, cycle counts, and examples of usage.
The document includes a disclaimer from Fairchild Semiconductor and references to related data sheets for the embedded MCU and configurable motor controller functions. This manual is written in Chinese.
Fairchild FCM8531 specifications
| Recommended PWM frequency | 15 kHz – 20 kHz |
|---|---|
| Hall signal input configuration 0 | HA=P14, HB=P15, HC=P16 |
| Hall signal input configuration 1 | HA=P24, HB=P25, HC=P26 |
| Command code for Hall pin configuration | 0x80 |
Source: Fairchild FCM8531 AMC Hall Interface Application Guide
All Fairchild FCM8531 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.
Questions answered in these manuals
What PWM control modes are supported?
The PWM control modes are sine‑wave mode and square‑wave mode; the default is sine‑wave mode.
From: Fairchild FCM8531 AMC Hall Interface Application Guide
What is the command code to start a run operation?
The run command uses CMD_RUN with index 0x10.
From: Fairchild FCM8531 AMC Hall Interface Application Guide