ARM AMBA NIC-301 Dokumentacja Pobierz pdf (Strona 37)

Hardware Description

ID062813 Non-Confidential

2.6 Voltage control and process monitors

This section describes the V2P_CA15_A7 daughterboard core voltage control and current,

temperature, power, and energy monitoring. It contains the following subsections:

• Voltage control and current, temperature, and power monitoring

• Energy meter on page 2-23.

See application note AN318, CoreTile

™

Express A15×2 A7×3 Power Management for more

information.

2.6.1 Voltage control and current, temperature, and power monitoring

The Daughterboard Configuration Controller transmits voltage and current measurements for

the Cortex-A15 and Cortex-A7 clusters to the motherboard where they can be read from the

SYS_CFG register interface.

Table 2-3 shows the device numbers for monitoring and setting the cluster voltages.

Table 2-4 shows the device numbers for monitoring the current in the cluster.

Table 2-5 shows the device number for monitoring the power in the cluster.

Table 2-6 shows the device number for monitoring the Daughterboard Configuration Controller

temperature.

Table 2-3 Monitoring and setting the cluster voltages

Device Cluster voltage supply Default voltage Description

0 Vcore 0.9V +/-2% Sets and reads Cortex-A15 core voltage

1 Vcore 0.9V +/-2% Sets and reads Cortex-A7 core voltage

Table 2-4 Cluster current monitors

Device Cluster current Description

0 Icore Current measurement device for the two Cortex-A15 cores, total current

1 Icore Current measurement device for the three Cortex-A7 cores, total current

Table 2-5 Cluster power monitors

Device Cluster power Description

0 Pcore Power measurement device for the two Cortex-A15 cores, total power

1 Pcore Power measurement device for the three Cortex-A7 cores, total power

Table 2-6 Device number for monitoring the Daughterboard Configuration Controller

temperature

Device Description

Measurement device for the

Daughterboard Configuration Controller internal

operating temperature

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 177 178

Brak uwag

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