Texas Instruments TMS320DM357 manual Count 0 Register COUNT0, Receive Count Register Rxcount

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4.64 Count 0 Register (COUNT0)

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.

4.65 Receive Count Register (RXCOUNT)

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.

128 Universal Serial Bus (USB) Controller SPRUGH3–November 2008

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