PRELIMINARY
CYW54907
Table 8 shows the supported application cases. The table also shows the USB mode and PHY type, the connector type, and the
USB2_DSEL state associated with each case.
Table 8. USB Application Cases
Application Case
Mode
PHY
USB2_DSEL
Connector Information
Shorthand
DRD + USB 2.0 PHY
DRD-Host
USB 2.0
USB 2.0
0
1
Type: Micro-AB
Connect USB2_DSEL to the ID pin of the Micro-AB
receptacle.
DRD-Device
Host + USB 2.0 PHY
Device + USB2.0 PHY
Host
USB 2.0
USB 2.0
0
1
Type A
Type B
Device
Note: In host mode, the USB core can process an overcurrent event and take the appropriate action. The overcurrent event is input
into the CYW54907 via the alternative mode pin USB20H_CTL.
Figure 9 shows the CYW54907 configured to operate in DRD mode with a USB 2.0 PHY.
Figure 9. CYW54907 Configured as a DRD + USB 2.0 PHY
AXI/APB
PPC
EHC/OHC
DWDC/DMA
UTMI
OVC
UTMI
Multiplexer
UTMI
Demulitplexer
VBUS
UTMI
USB 2.0 PHY
D+/D–
5V
USB 2.0
Micro-AB ID
Connector
USB2_DSEL
VBUS
Switch
Chip Boundary
EHC:
OHC:
OVC:
PPC:
Enhanced Host Controller
Open Host Controller
Overcurrent indication
Port power control
USB
USB 2.0
Host
or Device
UTMI:
Document Number: 002-19312 Rev. *C
Page 22 of 95
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