RM0033 Rev 9 1145/1381
RM0033 USB on-the-go high-speed (OTG_HS)
1260
OTG_HS general core configuration register (OTG_HS_GCCFG)
Address offset: 0x038
Reset value: 0x0000 XXXX
Bit 31 Reserved, must be kept at reset value.
Bits 30:24 NPTXQTOP: Top of the nonperiodic transmit request queue
Entry in the nonperiodic Tx request queue that is currently being processed by the MAC.
Bits [30:27]: Channel/endpoint number
Bits [26:25]:
– 00: IN/OUT token
– 01: Zero-length transmit packet (device IN/host OUT)
– 10: PING/CSPLIT token
– 11: Channel halt command
Bit [24]: Terminate (last entry for selected channel/endpoint)
Bits 23:16 NPTQXSAV: Nonperiodic transmit request queue space available
Indicates the amount of free space available in the nonperiodic transmit request queue.
This queue holds both IN and OUT requests in host mode. Peripheral mode has only IN
requests.
00: Nonperiodic transmit request queue is full
01: dx1 location available
10: dx2 locations available
bxn: dxn locations available (0 ≤ n ≤ dx8)
Others: Reserved
Bits 15:0 NPTXFSAV: Nonperiodic TxFIFO space available
Indicates the amount of free space available in the nonperiodic TxFIFO.
Values are in terms of 32-bit words.
00: Nonperiodic TxFIFO is full
01: dx1 word available
10: dx2 words available
0xn: dxn words available (where 0 ≤ n ≤ dx1024)
Others: Reserved
313029282726252423222120191817161514131211109876543210
Reserved
NOVBUSSENS
SOFOUTEN
VBUSBSEN
VBUSASEN
I2CPADEN
.PWRDWN
Reserved
rw rw rw rw rw rw
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