最終更新:2014-04-10 (木) 15:34:11 (2187d)  

USBCMD
Top / USBCMD

USB Command Register

The Command Register indicates the command to be executed by the serial bus host controller. Writing to the register causes a command to be executed.

Bitサイズメモ
31-248Reserved
23-168Interrupt Threshold Control
15-124Reserved
111Asynchronous Schedule Park Mode Enable
101Reserved
9-82Asynchronous Schedule Park Mode Count
71Light Host Controller Reset
61Interrupt on Async Advance Doorbell
51Asynchronous Schedule Enable
41Periodic Schedule Enable
3-22Frame List Size
11Host Controller Reset (HCRESET)
01Run/Stop(RS)