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Peripheral Architecture

The following section shows an example illustrating the address translation used in each VLYNQ module.

Address bits [31:26] are not used for address translation to remote devices on the C6452 device.

Table 3 illustrates address map register configuration when the device is transmitting data to the remote

device.

Table 3. Address Translation Example (Single Mapped Region)

TX Address Map 0000 : 0000h Do not care

RX Address Map Size 1 Do not care 0000 : 0100h

RX Address Map Offset 1 Do not care 0800 : 0000h

C6452 VLYNQ Module:

3800 : 0054h Initial address at the slave configuration bus

0000 : 0054h Initial address [25:0] at the slave configuration bus interface

subtract 0000 : 0000h TX address map register (there is no need to change the reset value of the

device for this register)

0000 : 0054h

Remote VLYNQ Module:

0000 : 0054h Initial address from the RX serial interface

compare 0000 : 0100h RX address map size 1 register

0000 : 0054h

add 0800 : 0000h RX address map offset 1 register

0800 : 0054h Translated address to remote device

The local address 3800 : 0054h (or 0000 0054h) was translated to 0800 : 0054h on the remote VLYNQ

device in Table 4 .

Table 4 illustrates the address map register configuration when the device is receiving data from the

remote device.

Table 4. Address Translation Example (Single Mapped Region)

TX Address Map Do not care 0400 : 0000h

RX Address Map Size 1 0000 : 0100h Do not care

RX Address Map Offset 1 0200 : 0000h Do not care

RX Address Map Size 2 0000 : 0100h Do not care

RX Address Map Offset 2 8200 : 0000h Do not care

Remote VLYNQ Module:

0400 : 0154h Initial address at the slave configuration bus for the remote device

subtract 0400 : 0000h TX address map register

0000 : 0154h Translated address to remote device via serial interface

SPRUF89 – October 2007 VLYNQ Port 19

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