PHY hardware configuration.
PHY_SEL | Select internal/external PHY |
EXCHG_PINS_OVERRIDE | Enable software control USB D+ D- exchange |
EXCHG_PINS | USB D+ D- exchange |
VREFH | Control single-end input high threshold,1.76V to 2V, step 80mV |
VREFL | Control single-end input low threshold,0.8V to 1.04V, step 80mV |
VREF_OVERRIDE | Enable software control input threshold |
PAD_PULL_OVERRIDE | Enable software control USB D+ D- pullup pulldown |
DP_PULLUP | Control USB D+ pull up. |
DP_PULLDOWN | Control USB D+ pull down. |
DM_PULLUP | Control USB D- pull up. |
DM_PULLDOWN | Control USB D- pull down. |
PULLUP_VALUE | Control pull up value. |
USB_PAD_ENABLE | Enable USB pad function. |
USB_JTAG_BRIDGE_EN | Set this bit usb_jtag, the connection between usb_jtag and internal JTAG is disconnected, and MTMS, MTDI, MTCK are output through GPIO Matrix, MTDO is input through GPIO Matrix. |