Specifications

Programmers Model

ID052914 Non-Confidential

• Cortex-A Series memory map:

— The registers map onto the CS3 chip select.

Note

See the Technical Reference Manual for your daughterboard.

Table 4-28 provides information about the MCI interface.

4.5.7 Real Time Clock, RTC

The PL031 PrimeCell Real Time Clock Controller (RTC) is an AMBA-compliant SoC

peripheral that is developed, tested, and licensed by ARM.

A counter in the RTC is incremented every second. The RTC can therefore be used as a basic

alarm function or long time-base counter.

You can read the current value of the clock at any time, or you can program the RTC to generate

an interrupt after counting for a programmed number of seconds. You can mask the interrupt by

writing to the interrupt match set or clear register.

The internal registers of the RTC are memory-mapped onto a static memory bus chip select. The

chip select that they map onto depends on the memory map your daughterboard is using as

follows:

• ARM legacy memory map:

— The registers map onto the CS7 chip select.

• Cortex-A Series memory map:

— The registers map onto the CS3 chip select.

Note

See the Technical Reference Manual for your daughterboard.

Table 4-28 MCI implementation

Property Value

Location Motherboard IOFPGA

Memory base address • ARM Legacy memory map:

— SMB CS7 base address +

0x5000

• Cortex-A Series memory map:

— SMB CS3 base address +

0x50000

Interrupt 9 for MCI0

10 for MCI1

DMA See Table 4-14 on page 4-18

Release version ARM MCI PL180 r1p0

Reference documentation

ARM

PrimeCell Multimedia Card Interface (PL180) Technical Reference Manual