Texas Instruments SPRU938B Receive Address Map Size 1 Register RAMS1, RXADRSIZE1, RXADROFFSET1

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VLYNQ Port Registers

3.9Receive Address Map Size 1 Register (RAMS1)

The receive address map size 1 register (RAMS1) is used to identify the intended destination of inbound serial packets. The RAMS1 is shown in Figure 17 and described in Table 14.

Figure 17. Receive Address Map Size 1 Register (RAMS1)

31	2	1	0
RXADRSIZE1		Reserved
R/W-0			R-0
LEGEND: R/W = Read/Write; R = Read only; -n= value after reset

Table 14. Receive Address Map Size 1 Register (RAMS1) Field Descriptions

Bit	Field	Value	Description
31-2	RXADRSIZE1	0-3FFF FFFFh	The RXADRSIZE1 field is used to determine if receive packets are destined for the first of
			four mapped address regions. RXADRSIZE1 is compared with the address contained in the
			receive packet. If the received packet address is less than the value in RXADRSIZE1, the
			packet address is added to the receive address map offset 1 register (RAMO1) to obtain the
			translated address.
1-0	Reserved	0	Reserved. Always read as 0. Writes have no effect.

3.10 Receive Address Map Offset 1 Register (RAMO1)

The receive address map offset 1 register (RAMO1) is used with the receive address map size 1 register (RAMS1) to translate receive packet addresses to local device configuration bus addresses. The RAMO1 is shown in Figure 18 and described in Table 15.

Figure 18. Receive Address Map Offset 1 Register (RAMO1)

31	2	1	0
RXADROFFSET1		Reserved
R/W-0			R-0
LEGEND: R/W = Read/Write; R = Read only; -n= value after reset

Table 15. Receive Address Map Offset 1 Register (RAMO1) Field Descriptions

Bit	Field	Value	Description
31-2	RXADROFFSET1	0-3FFF FFFFh	The RXADROFFSET1 field is used with the receive address map size 1 register (RAMS1)
			to determine the translated address for serial data. If the received packet address is less
			than the value in RAMS1, 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	33
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