MPC561/MPC563

PRODUCT BRIEF

MOTOROLA

2

— Decrementer

— Time base

• Clock synthesizer

• Power management

• Reset controller

• External bus interface that tolerates 5-V inputs, provides 2.6-V outputs and supports multiple-mas-

ter designs

• Enhanced interrupt controller that supports up to eight external and 40 internal interrupts, simpli-

fies the interrupt structure and decreases interrupt processing time

• USIU supports dual mapping to map part of one internal/external memory to another external

memory

• USIU supports dual mapping of flash on MPC563 and MPC564 to move part of internal flash mem-

ory to external bus for development

• External bus, supporting non-wraparound burst for instruction fetches, with up to 8 instructions per

memory cycle

Burst Buffer Controller (BBC) Module

• Support for enhanced interrupt controller (EIC)

• Support for enhanced exception table relocation feature

• Branch target buffer

• Contains 2-Kbytes of decompression RAM (DECRAM) for code compression. This RAM may also

be used as general-purpose RAM when code compression feature not used.

Flexible Memory Protection Unit

• Flexible memory protection units (MPU) in BBC and L2U

• Default attributes available in one global entry

• Attribute support for speculative accesses

• Up to eight memory regions are supported, four for data and four for instructions

Memory Controller

• Four flexible chip selects via memory controller

• 24-bit address and 32-bit data buses

• 4-Kbyte to one 16-Mbyte (data) or four-Gbyte (instruction) region size support

• Supports enhanced external burst

• Up to eight-beat transfer bursts, two-clock minimum bus transactions

• Use with SRAM, EPROM, flash and other peripherals

• Byte selects or write enables

• 32-bit address decodes with bit masks

• Four regions

512-Kbytes of CDR3 Flash EEPROM Memory (UC3F) – MPC563 Only

• One 512-Kbyte module

• Page read mode

• Block (64 Kbytes) erasable

• External 4.75- to 5.25-V VFLASH power supply for program, erase, and read operations

32-Kbyte static RAM (CALRAM)

• Composed of one 32-Kbyte CALRAM module

— 28-Kbyte static RAM

— 4-Kbyte calibration (overlay) RAM feature that allows calibration of flash-based constants

• Eight 512-byte overlay regions

• One clock fast accesses

• Two-clock cycle access option for power saving

• Keep-alive power (VDDSRAM) for data retention