AHB-to-APB Bridge interfaces AHB and APB buses. It is required
to bridge the communication gap between low bandwidth peripherals
on APB with the high bandwidth AHB.
Normally APB works without pipelining of address. The bridge
is used to control the AHB such that it can halt for a particular
number of cycles and synchronization is maintained. This is
to ensure that there is no data loss between AHB to APB or
APB to AHB data transfers.
Features
- Compliant to AMBA specifications 2.0
- Supports sequential and non-sequential data transfer
on AHB side
- Supported data and address buswidths: 8, 16, 32,
64 bits. Default is 32
- Parameterized no. of slaves: maximum slaves are
16
- APB data bus is configurable as tristate or bi-directional
read/write separate buse
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