ARM AMBA NIC-301 Specifikace stáhnout pdf (Strana 128)

Programmers Model

ID062813 Non-Confidential

Configurations Not applicable.

Attributes See Table 3-56 on page 3-69.

Figure 3-42 shows the bit assignments.

Figure 3-42 System counter CNTCVU Read Register bit assignments

Table 3-58 shows the bit assignments.

CNTFID0

The CNTFID0 Register characteristics are:

Purpose System counter base frequency ID read register that enables you to read

the counter frequency.

Usage constraints This register is read-only.

Configurations Not applicable.

Attributes See Table 3-56 on page 3-69.

Table 3-59 shows the bit assignments.

PID0

The PID0 Register characteristics are:

Purpose System counter peripheral identification read register 0 that enables you to

read peripheral identification information.

Usage constraints This register is read-only.

Configurations Not applicable.

Attributes See Table 3-56 on page 3-69.

Figure 3-43 on page 3-72 shows the bit assignments.

31 0

0 00000 0 000000000000 0000 000000 00

CNTCVU

Table 3-58 System counter CNTCVU Read Register bit assignments

Bits Name Function

[31:0] CNTCVU Current unencoded value of counter upper 32 bits, CNTCV[63:32].

The default is

0x0000_0000

Table 3-59 System counter CNTFID0 Read Register bit assignments

Bits Name Function

[31:0] CNTFID0 Counter frequency.

The default is

0x0000_0000

1 2 ... 123 124 125 126 127 128 129 130 131 132 133 ... 177 178

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ARM AMBA NIC-301 Specifikace Strana 128