Universal Serial Bus Controller User's Guide

4.70 Receive Type Register (Host mode only) (HOST_RXTYPE)
4.71 Receive Interval Register (Host mode only) (HOST_RXINTERVAL)
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Registers
The Receive Type Register (Host mode only) (HOST_RXTYPE) is shown in Figure 85 and described in
Table 86 .
Figure 85. Receive Type Register (Host mode only) (HOST_RXTYPE)
7 6 5 4 3 0
SPEED PROT RENDPN
R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; - n = value after reset
Table 86. Receive Type Register (Host mode only) (HOST_RXTYPE) Field Descriptions
Bit Field Value Description
7-6 SPEED 0-3h Operating Speed of Target Device
0 Illegal
1h High
2h Full
3h Low
5-4 PROT 0-3h Set this to select the required protocol for the transmit endpoint
0 Control
1h Isochronous
2h Bulk
3h Interrupt
3-0 RENDPN 0-Fh Set this value to the endpoint number contained in the Receive endpoint descriptor returned to the USB
controller during device enumeration
The Receive Interval Register (Host mode only) (HOST_RXINTERVAL) is shown in Figure 86 and
described in Table 87 .
Figure 86. Receive Interval Register (Host mode only) (HOST_RXINTERVAL)
7 0
POLINTVL_NAKLIMIT
R/W-0
LEGEND: R/W = Read/Write; - n = value after reset
SPRUGH3 November 2008 Universal Serial Bus (USB) Controller 131
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