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11.4. Burst operations

In all test modes other than functional test, the SSM provides locations for burst reads and writes of certain lengths. These are shown in Table 11.6.

Burst locations

Burst size

Address

1

0x000

2

0x040

4

0x080

8

0x0C0

16

0x100

32

0x140

64

0x180

128

0x1C0

To construct the address of a location for a burst access, you must add the address of the burst size to the address of the location. For example:

  • address of PA TAG RAM read location = 0x18

  • address of burst-64 location = 0x180

  • address of burst of 64 PA TAG RAM reads = 0x18 + 0x180 = 0x198.

For each of the six test modes (see Table 11.1) there is a table summarizing for each location:

  • its address

  • whether it is for reading or writing

  • whether burst accesses are supported to that location

  • the alignment of read and write data.

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