ARM AMBA NIC-301 Dokumentacja Pobierz pdf (Strona 138)

Programmers Model

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Figure 3-52 shows the bit assignments.

Figure 3-52 System timer CNTPU_CVAL Register bit assignments

Table 3-77 shows the bit assignments.

CNTPU_CVAL

The CNTPU_CVAL Register characteristics are:

Purpose System timer upper 32 bits comparison value register that enables you to

read and write the system timer upper 32 bits comparison values.

Usage constraints There are no usage constraints.

Configurations Not applicable.

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

Figure 3-53 shows the bit assignments.

Figure 3-53 System timer CNTPU_CVAL Register bit assignments

Table 3-78 shows the bit assignments.

CNTP_TVAL

The CNTP_TVAL Register characteristics are:

Purpose The CNTP_TVAL register is the system timer value register. It enables

you to read and write the system timer value.

Usage constraints There are no usage constraints.

Configurations Not applicable.

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

Figure 3-54 on page 3-82 shows the bit assignments.

31 0

0 00000 0 000000000000 0000 000000 00

CNTPL_CVAL

Table 3-77 System timer CNTPL_CVAL Register bit assignments

Bits Name Function

[31:0] CNTPL_CVAL System timer lower 32 bits comparison values.

31 0

0 00000 0 000000000000 0000 000000 00

CNTPU_CVAL

Table 3-78 System timer CNTPU_CVAL Register bit assignments

Bits Name Function

[31:0] CNTPU_CVAL System timer upper 32 bits comparison values.

1 2 ... 133 134 135 136 137 138 139 140 141 142 143 ... 177 178

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ARM AMBA NIC-301 Dokumentacja Strona 138