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Programmers Model

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Figure 3-54 System counter CNTP_TVAL Register bit assignments

Table 3-79 shows the bit assignments.

CNTP_CTL

The CNTP_CTL Register characteristics are:

Purpose The CNTP_CTL register is the physical timer control register. It enables

you to read and write the physical timer control settings.

Usage constraints There are no usage constraints.

Configurations Not applicable.

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

Figure 3-55 shows the bit assignments.

Figure 3-55 System counter CNTP_CTL Register bit assignments

Table 3-80 shows the bit assignments.

31 0

0 00000 0 000000000000 0000 000000 00

CNTP_TVAL

Table 3-79 System counter CNTP_TVAL Register bit assignments

Bits Name Function

[31:0] CNTP_TVAL System timer value

31 0

0 00000 0 000000000000 0000 000000 00

Reserved

4321

IMSTAT

ISTAT

IMSK

Table 3-80 System counter CNTP_CTL Register bit assignments

Bits Name Function

[31:4] - Reserved. Do not modify.

[3] IMSTAT Interrupt status after masking:

Interrupt asserted.

Interrupt not asserted.

The default is

1 2 ... 134 135 136 137 138 139 140 141 142 143 144 ... 177 178

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ARM AMBA NIC-301 Specifiche Pagina 139