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PL031_RTC component

This section describes the PL031_RTC component.

PL031_RTC - about

ARM PrimeCell Real Time Clock (PL031). This model is written in LISA+.

PL031_RTC contains the following CADI targets:

  • PL031_RTC

PL031_RTC contains the following MTI components:

It can provide a basic alarm function or long time base counter.

PL031_RTC - ports

This section describes the ports.

Table 4-137 PL031_RTC ports

Name Protocol Type Description
pvbus PVBus Slave Slave port for connection to PV bus master/decoder
intr Signal Master Interrupt signaling
clock ClockSignal Slave Clock input, typically 1MHz, driving master count rate

PL031_RTC - registers

This section describes the registers.

Table 4-138 PL031_RTC registers

Name Offset Access Description
RTCDR 0x000 Read only Data register
RTCMR 0x004 Read/write Match register
RTCLR 0x008 Read/write Load register
RTCCR 0x00C Read/write Control register
RTCIMSC 0x010 Read/write Interrupt mask set and clear register
RTCRIS 0x014 Read only Raw interrupt status register
RTCMIS 0x018 Read only Masked interrupt status register
RTCIRC 0x01C Write only Interrupt clear registera
RTCPeriphID0 0xFE0 Read only Peripheral ID registera
RTCPeriphID1 0xFE4 Read only Peripheral ID registera
RTCPeriphID2 0xFE8 Read only Peripheral ID registera
RTCPeriphID3 0xFEC Read only Peripheral ID registera
RTCPCellID0 0xFF0 Read only PrimeCell ID registera
RTCPCellID1 0xFF4 Read only PrimeCell ID registera
RTCPCellID2 0xFF8 Read only PrimeCell ID registera
RTCPCellID3 0xFFC Read only PrimeCell ID registera

PL031_RTC - verification and testing

This component passes tests as part of the VE example system by using VE test suites and by booting operating systems. This component passes tests as part of the SMLT component.

PL031_RTC - performance

This component has no impact on the performance of a PV system when idle or counting down. The component only executes code when the counter expires or during bus accesses.

a This register has no CADI interface.
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