ARM AMBA NIC-301 Specifikace stáhnout pdf (Strana 135)

Programmers Model

ID062813 Non-Confidential

CNTUPCT

The CNTUPCT Register characteristics are:

Purpose System timer physical count upper 32 bit register that enables you to read

the upper 32 bits of the physical count.

Usage constraints This register is read-only.

Configurations Not applicable.

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

Table 3-70 shows the bit assignments.

CNTLVCT

The CNTLVCT Register characteristics are:

Purpose System timer virtual count lower 32 bit register. It enables you to read the

lower 32 bits of the virtual count.

Usage constraints This register is read-only.

Configurations Not applicable.

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

Table 3-71 shows the bit assignments.

CNTUVCT

The CNTUVCT Register characteristics are:

Purpose System timer virtual count upper 32 bit register that enables you to read

the upper 32 bits of the virtual count.

Usage constraints This register is read-only.

Configurations Not applicable.

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

Table 3-70 System timer CNTUPCT Register bit assignments

Bits Name Function

[31:0] CNTUPCT Physical count register upper 32 bits.

Table 3-71 System timer CNTLVCT Register bit assignments

Bits Name Function

[31:0] CNTLVCT Virtual count register lower 32 bits, physical count, virtual offset

1 2 ... 130 131 132 133 134 135 136 137 138 139 140 ... 177 178

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ARM AMBA NIC-301 Specifikace Strana 135