Module stm32g0::stm32g0c1::usb::lpmcsr

source · [−]
Expand description

LPM control and status register

Structs

LPMCSR_SPEC

LPM control and status register

R

Register LPMCSR reader

W

Register LPMCSR writer

Enums

LPMACK_A

LPM Token acknowledge enable The NYET/ACK will be returned only on a successful LPM transaction: No errors in both the EXT token and the LPM token (else ERROR) A valid bLinkState = 0001B (L1) is received (else STALL) This bit contains the device answer to the LPM transaction. It mast be evaluated following the L1REQ interrupt.

Type Definitions

BESL_R

Field BESL reader - BESL value Device mode These bits contain the BESL value received with last ACKed LPM Token Host mode These bits contain the BESL value transmitted with the LPM transaction

LPMACK_R

Field LPMACK reader - LPM Token acknowledge enable The NYET/ACK will be returned only on a successful LPM transaction: No errors in both the EXT token and the LPM token (else ERROR) A valid bLinkState = 0001B (L1) is received (else STALL) This bit contains the device answer to the LPM transaction. It mast be evaluated following the L1REQ interrupt.

LPMACK_W

Field LPMACK writer - LPM Token acknowledge enable The NYET/ACK will be returned only on a successful LPM transaction: No errors in both the EXT token and the LPM token (else ERROR) A valid bLinkState = 0001B (L1) is received (else STALL) This bit contains the device answer to the LPM transaction. It mast be evaluated following the L1REQ interrupt.

LPMEN_R

Field LPMEN reader - LPM support enable Device mode This bit is set by the software to enable the LPM support within the USB device. If this bit is at ’0 no LPM transactions are handled. Host mode Software sets this bit to transmit an LPM transaction to device. This bit is cleared by hardware, simultaneous with L1REQ flag set, when device answer is received

LPMEN_W

Field LPMEN writer - LPM support enable Device mode This bit is set by the software to enable the LPM support within the USB device. If this bit is at ’0 no LPM transactions are handled. Host mode Software sets this bit to transmit an LPM transaction to device. This bit is cleared by hardware, simultaneous with L1REQ flag set, when device answer is received

REMWAKE_R

Field REMWAKE reader - bRemoteWake value Device mode This bit contains the bRemoteWake value received with last ACKed LPM Token Host mode This bit contains the bRemoteWake value transmitted with the LPM transaction