Universal Serial Bus Controller User's Guide

4.66 Type Register (Host mode only) (HOST_TYPE0)
4.67 Transmit Type Register (Host mode only) (HOST_TXTYPE)
www.ti.com Registers
The Type Register (Host mode only) (HOST_TYPE0) is shown in Figure 81 and described in Table 82 .
Figure 81. Type Register (Host mode only) (HOST_TYPE0)
7 6 5 0
SPEED Reserved
R/W-0 R-0
LEGEND: R/W = Read/Write; R = Read only; - n = value after reset
Table 82. Type Register (Host mode only) (HOST_TYPE0) Field Descriptions
Bit Field Value Description
7-6 SPEED 0-3h Operating Speed of Target Device
0 Illegal
1h High
2h Full
3h Low
5-0 Reserved 0 Reserved
The Transmit Type Register (Host mode only) (HOST_TXTYPE) is shown in Figure 82 and described in
Table 83 .
Figure 82. Transmit Type Register (Host mode only) (HOST_TXTYPE)
7 6 5 4 3 0
SPEED PROT TENDPN
R/W-0 R/W-0 R/W-0
LEGEND: R/W = Read/Write; - n = value after reset
Table 83. Transmit Type Register (Host mode only) (HOST_TXTYPE) 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 TENDPN 0-Fh Set this value to the endpoint number contained in the transmit endpoint descriptor returned to the USB
controller during device enumeration.
SPRUGH3 – November 2008 Universal Serial Bus (USB) Controller 129
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