ARM AMBA NIC-301 Specifiche Scaricare il pdf (Pagina 95)

Programmers Model

ID062813 Non-Confidential

[24] ACP_64N128 Selects 64 or 128 bit operation for the ACP interface:

128 bit ACP.

64 bit ACP.

The default is

[23] ACP_BARE_METAL Selects DMA bare metal access to ACP interface:

DMA accesses ACP through NIC-301 fabric.

DMA directly accesses ACP interface.

The default is

[22] ACP_ADDRTRANS Translates the ACP addresses

0x00_3000_0000

0x00_3FFF_FFFF

by overriding bit 28 of

the AxADDR of the cluster ACP:

00x_E000_0000

00x_F000_0000

The default is

[21:16] ACP_AWUSER[5:0] ACP AWCACHE override:

AWUSER[5:2] = AWCACHE[3:0] if ACP_AUSER_OVERRIDE =

AWUSER[5:2] = CFGREG41[25:22] if ACP_AUSER_OVERRIDE =

AWUSER[1:0] = CFGREG41[21:20].

The default is

b111111

[15:10] ACP_ARUSER[5:0] ACP ARCACHE override:

ARUSER[5:2] = ARCACHE[3:0] if ACP_AUSER_OVERRIDE =

ARUSER[5:2] = CFGREG41[19:16] if AUSER_OVERRIDE_ACP =

ARUSER[1:0] = CFGREG41[15:14].

The default is

b111111

[9] ACP_AUSER_OVERRIDE ACP AxUSER[5:2] override enable:

Override disabled.

Override enabled.

The default is

[8] AINACTS Disables the ACP interface:

ACP enabled.

ACP disabled.

The default is

[7] ACINACTM Disables the Cortex-A15 snoop interface:

ACP snoop interface enabled.

ACP snoop interface disabled.

The default is

[6] - Reserved. Do not modify.

Table 3-22 Test chip CFGREG42 Register bit assignments (continued)

Bits Name Function

1 2 ... 90 91 92 93 94 95 96 97 98 99 100 ... 177 178

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