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ST STM32G0 1 Series - Table 224. Reception Status Encoding; Table 225. EndpointChannel Type Encoding; Table 226. EndpointChannel Kind Meaning; Table 227. Transmission Status Encoding

ST STM32G0 1 Series
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Universal serial bus full-speed host/device interface (USB) RM0444
1300/1390 RM0444 Rev 5
Table 224. Reception status encoding
STATRX[1:0] Meaning
00 DISABLED: all reception requests addressed to this endpoint/channel are ignored.
01
STALL:
Device mode: the endpoint is stalled and all reception requests result in a STALL
handshake.
Host mode: this indicates that the device has STALLed the channel.
10
NAK:
Device mode: the endpoint is NAKed and all reception requests result in a NAK
handshake.
Host mode: this indicates that the device has NAKed the reception request.
11 VALID: this endpoint/channel is enabled for reception.
Table 225. Endpoint/channel type encoding
UTYPE[1:0] Meaning
00 BULK
01 CONTROL
10 ISO
11 INTERRUPT
Table 226. Endpoint/channel kind meaning
UTYPE[1:0] EPKIND meaning
00 BULK DBL_BUF
01 CONTROL STATUS_OUT
10 ISO
SBUF_ISO: This bit is set by the software to enable the
single-buffering feature for isochronous endpoint
11 INTERRUPT Not used
Table 227. Transmission status encoding
STATTX[1:0] Meaning
00
DISABLED: all transmission requests addressed to this endpoint/channel are
ignored.
01
STALL:
Device mode: the endpoint is stalled and all transmission requests result in a
STALL handshake.
Host mode: this indicates that the device has STALLed the channel.

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