TC1775 Datasheet, PDF (49/101 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1775
Preliminary
On-Chip FPI Bus
The FPI Bus interconnects the functional units of the TC1775, such as the CPU and
on-chip peripheral components. The FPI Bus also interconnects the TC1775 to external
components by way of the External Bus Controller Unit (EBU). The FPI Bus is designed
to be quick to acquire by on-chip functional units, and quick to transfer data. The low
setup overhead of the FPI Bus access protocol guarantees fast FPI Bus acquisition,
which is required for time-critical applications. The FPI Bus is designed to sustain high
transfer rates. For example, a peak transfer rate of up to 160 Mbyte/s can be achieved
with a 40 MHz bus clock and 32-bit data bus. Multiple data transfers per bus arbitration
cycle allow the FPI Bus to operate at close to its peak bandwidth.
Features:
• Supports multiple bus masters
• Supports demultiplexed address/data operation
• Address and data buses are 32 bits wide
• Data transfer types include 8-, 16-, and 32-bit sizes
• Single- and multiple-data transfers per bus acquisition cycle
• Designed to minimize EMI and power consumption
Data Sheet
45
V1.2, 2002-05