Texas Instruments SPRU938B Receive Address Map Size 3 Register RAMS3, RXADRSIZE3, RXADROFFSET3

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VLYNQ Port Registers

3.13 Receive Address Map Size 3 Register (RAMS3)

The receive address map size 3 register (RAMS3) is used to identify the intended destination of inbound serial packets. The RAMS3 is shown in Figure 21 and described in Table 18.

Figure 21. Receive Address Map Size 3 Register (RAMS3)

31	2	1	0
RXADRSIZE3		Reserved
R/W-0			R-0
LEGEND: R/W = Read/Write; R = Read only; -n= value after reset

Table 18. Receive Address Map Size 3 Register (RAMS3) Field Descriptions

Bit	Field	Value	Description
31-2	RXADRSIZE3	0-3FFF FFFFh	The RXADRSIZE3 field is used to determine if receive packets are destined for the third of
			four mapped address regions. RXADRSIZE3 is compared with the address contained in the
			receive packet. If the receive packet address is less than the value in RXADRSIZE3, the
			packet address is added to the receive address map offset 3 register (RAMO3) to obtain the
			translated address.
1-0	Reserved	0	Reserved. Always read as 0. Writes have no effect.

3.14 Receive Address Map Offset 3 Register (RAMO3)

The receive address map offset 3 register (RAMO3) is used with the receive address map size 3 register (RAMS3) to translate receive packet addresses to local device configuration bus addresses. The RAMO3 is shown in Figure 22 and described in Table 19.

Figure 22. Receive Address Map Offset 3 Register (RAMO3)

31	2	1	0
RXADROFFSET3		Reserved
R/W-0			R-0
LEGEND: R/W = Read/Write; R = Read only; -n= value after reset

Table 19. Receive Address Map Offset 3 Register (RAMO3) Field Descriptions

Bit	Field	Value	Description
31-2	RXADROFFSET3	0-3FFF FFFFh	The RXADROFFSET3 field is used with the receive address map size 3 register (RAMS3)
			to determine the translated address for serial data. If the receive packet address is less
			than the value in RAMS3, the packet address is added to the contents of this register to
			obtain the translated address.
1-0	Reserved	0	Reserved. Always read as 0. Writes have no effect.

SPRU938B –September 2007	VLYNQ Port	35
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