User's Manual

4.64 Count 0 Register (COUNT0)
4.65 Receive Count Register (RXCOUNT)
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The Count 0 Register (COUNT0) is shown in Figure 79 and described in Table 80 .
Figure 79. Count 0 Register (COUNT0)
15 7 6 0
Reserved EP0RXCOUNT
R-0 R-0
LEGEND: R = Read only; - n = value after reset
Table 80. Count 0 Register (COUNT0) Field Descriptions
Bit Field Value Description
15-7 Reserved 0 Reserved
6-0 EP0RXCOUNT 0-7Fh Indicates the number of received data bytes in the Endpoint 0 FIFO. The value returned changes as
the contents of the FIFO change and is only valid while RXPKTRDY of PERI_CSR0 or
HOST_CSR0 is set.
The Receive Count Register (RXCOUNT) is shown in Figure 80 and described in Table 81 .
Figure 80. Receive Count Register (RXCOUNT)
15 13 12 0
Reserved EPRXCOUNT
R-0 R-0
LEGEND: R = Read only; - n = value after reset
Table 81. Receive Count Register (RXCOUNT) Field Descriptions
Bit Field Value Description
15-13 Reserved 0 Reserved
12-0 EPRXCOUNT 0-1FFFh Holds the number of received data bytes in the packet in the Receive FIFO. The value
returned changes as the contents of the FIFO change and is only valid while RXPKTRDY of
PERI_RXCSR or HOST_RXCSR is set.
Universal Serial Bus (USB) Controller128 SPRUGH3 – November 2008
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