M66290AFP datasheet(23/54 Pages) RENESAS

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USB DEVICE CONTROLLER

M66290AGP/FP

MITSUBISHI <DIGITAL ASSP>

Powered

state

(DVSQ="000")

Suspended

state

(DVSQ="100")

Suspend detection (DVST)

Resume detection (RESM)

Def ault

state

(DVSQ="001")

Suspended

state

(DVSQ="101")

Suspend detection (DVST)

Resume detection (RESM)

Def ault

state

(DVSQ="010")

Suspended

state

(DVSQ="110")

Suspend detection (DVST)

Resume detection (RESM)

Set Address execution (DVST)

(Dev iceAddress=01h to 7Fh)

*Can be set to auto-response

USB reset detection (DVST)

Def ault

state

(DVSQ="011")

Suspended

state

(DVSQ="111")

Suspend detection (DVST)

Resume detection (RESM)

Set Conf iguration execution (DVST)

(Conf iguration Value is not equal to 0)

*Can be set to auto-response

Set Conf iguration execution (DVST)

(Conf iguration Value is not equal to 0)

*Can be set to auto-response

USB reset detection (DVST)

Device state transition

M66290A manages dev ice state by H/W.

It manages Powered, Def ault, Address, Conf igured,

and Suspended state of U SB dev ice state.

To Set_Address and Set_Conf iguration request in

auto-response mode, transf er can be completed

without occurring interrupt to CPU.

To Set_Address request, auto-response is executed to

Set_Address request (Dev iceAddess=01h

to 7Fh) which dev ice state is in Def ault state, and to

Figure 5. Device state shift

other state and to Set_Address request which Dev iceAddess

is not equal to 01h to 7Fh, auto-response is not executed.

To Set_Conf iguration request, auto-response is executed

to Set_Conf iguration request (Conf igurationValue is not equal

to 0) which dev ice state is in Address state and to

Set_Conf iguration request (Conf igurationValue=0) which dev ice

state is in Conf igured state.

To other state and to Set_Conf iguration request which is

diff erent of its Conf igurationValue f rom the v alue abov e,

auto-response is not executed.

M66290AFP Datasheet(PDF) 23 Page - Renesas Technology Corp

M66290AFP Datasheet(HTML) 23 Page - Renesas Technology Corp

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