W99681CF Datasheet, PDF (36/78 Pages) Winbond – JPEG USB Dual Mode Camera Chip

W99681CF
on the USB bus lines for more than 3.0 ms. When suspended, both SUSPND and PWRDWN are active
high, PWRDWN# is active low, and the Camera Power-on Control register is cleared to zero (CR00_4
= 0). The W99681CF-based devices must draw less than 500 uA from the bus when suspended.
7.6.5 Resume
Once the W99681CF is in the suspended state, it can be resumed by receiving non-idle signaling on
the bus. SUSPND will be inactive low when resumed. PWRDWN and PWRDWN# will remain active
until the Camera Power-on Control register is set to one (CR00_4 = 1) by the host.
- 36 -