ARM AMBA NIC-301 Spezifikationen PDF herunterladen (Seite 137)

Programmers Model

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CNTLVOFF

The CNTLVOFF Register characteristics are:

Purpose System register read-only version of the virtual offset lower 32 bits from

the system timer control block CNTVOFF[31:0]. This is visible only in

the first ‘kernel’ view and this enables you to read the virtual offset 32 bits.

Usage constraints This register is read-only.

Configurations Not applicable.

Attributes See Table 3-68 on page 3-76.

Table 3-75 shows the bit assignments.

CNTUVOFF

The CNTUVOFF Register characteristics are:

Purpose System register read-only version of the virtual offset upper 32 bits from

the system timer control block CNTVOFF[63:32]. This is visible only in

the first ‘kernel’ view and enables you to read the virtual offset upper 32

bits.

Usage constraints This register is read-only.

Configurations Not applicable.

Attributes See Table 3-68 on page 3-76.

Table 3-76 shows the bit assignments.

CNTPL_CVAL

The CNTPL_CVAL Register characteristics are:

Purpose The CNTPL_CVAL register is the system timer lower 32 bits comparison

value register. It enables you to read and write the system timer lower 32

bits comparison values.

Usage constraints There are no usage constraints.

Configurations Not applicable.

Attributes See Table 3-68 on page 3-76.

Table 3-75 System timer CNTLOFF Register bit assignments

Bits Name Function

[31:0] CNTLVOFF Read-only version of the virtual offset lower 32 bits from the system timer

control block CNTVOFF[31:0]. This is visible only in the first ‘kernel’ view.

Table 3-76 System timer CNTVOFF Register bit assignments

Bits Name Function

[31:0] CNTUVOFF Read-only version of the virtual offset upper 32 bits of the system timer

control block CNTVOFF[63:32]. This is visible only in the first ‘kernel’ view.

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ARM AMBA NIC-301 Spezifikationen Seite 137