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3.11 Receive Address Map Size 2 Register (RAMS2)
3.12 Receive Address Map Offset 2 Register (RAMO2)
VLYNQ Port Registers
The receive address map size 2 register (RAMS2) is used to identify the intended destination of inbound
serial packets. The RAMS2 is shown in
Figure 19
and described in
Table 17
.
Figure 19. Receive Address Map Size 2 Register (RAMS2)
31
2
1
0
RXADRSIZE2
Reserved
R/W-0
R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 17. Receive Address Map Size 2 Register (RAMS2) Field Descriptions
Bit
Field
Value
Description
31-2
RXADRSIZE2
0-3FFF FFFFh
The RXADRSIZE2 field is used to determine if receive packets are destined for the second
of four mapped address regions. RXADRSIZE2 is compared with the address contained in
the receive packet. If the received packet address is less than the value in RXADRSIZE2,
the packet address is added to the receive address map offset 2 register (RAMO2) to obtain
the translated address.
1-0
Reserved
0
Reserved. Always read as 0. Writes have no effect.
The receive address map offset 2 register (RAMO2) is used with the receive address map size 2 register
(RAMS2) to translate receive packet addresses to local device configuration bus addresses. The RAMO2
is shown in
Figure 20
and described in
Table 18
.
Figure 20. Receive Address Map Offset 2 Register (RAMO2)
31
2
1
0
RXADROFFSET2
Reserved
R/W-0
R-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 18. Receive Address Map Offset 2 Register (RAMO2) Field Descriptions
Bit
Field
Value
Description
31-2
RXADROFFSET2
0-3FFF FFFFh
The RXADROFFSET2 field is used with the receive address map size 2 register (RAMS2)
to determine the translated address for serial data. If the received packet address is less
than the value in RAMS2, 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 affect.
SPRUE36A – September 2007
VLYNQ Port
35
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