Data Sheet

FSC-BT956B Datasheet
Shenzhen Feasycom Technology Co., Ltd www.feasycom.com
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Figure 7: USB Device Controller Block Diagram
4.7 PWM Generator and Capture Timer (PWM)
The PWM module generates 4 independent PWM outputs, utilizing 3 specialized modulation schemes. All PWM
outputs can be configured to PWL, PWT and LGP mode.
Pulse Width Tone (PWT)
Generates square wave output capable of driving piezo electric speaker
Variable frequency between 349Hz and 5276Hz with 12 half-tone frequencies per octave
Volume control
Light Pulse Generation (LPG)
Adjustable PWM frequency is from 0.01Hz ~ 6.5MHz
Adjustable on-time/off-time is from 0.77us to 50s.
Customized output mode for square wave
Pulse Width Light (PWL)
Pseudo random bit sequence with output on-time proportional to a programmed threshold value
Minimizes flicker
4.8 SD/TF/MMC Controller
This module connects inner bus and outer SD/TF or MMC card. It receives the inner command and data, transfers it to
outer SD/TF or MMC card, and transfer response or data back.
SD/TF Card Specification Version 2.0
SDIO Version 1.10
MMC specification Version 3.1
Hot insertion and removal of media cards will be considered by GPIO module