Part Number PPC405CR
Revision 1.02 – January 11, 2005
PPC405CR
Features
•
Data Sheet
PowerPC 405CR Embedded Processor
PowerPC
®
405 32-bit RISC processor core
operating up to 266MHz
- Memory Management Unit
- 16KB instruction and 8KB data caches
- Multiply-Accumulate (MAC) function,
including fast multiply unit
- Programmable Timers
Synchronous DRAM (SDRAM) interface oper-
ating up to 133MHz
- 32-bit interface for non-ECC applications
- 40-bit interface serves 32 bits of data plus 8
check bits for ECC applications
External Peripheral Bus
- Flash ROM/Boot ROM interface
- Direct support for 8-, 16-, or 32-bit SRAM and
external peripherals
- Up to eight devices
- External Mastering supported
•
DMA support for external peripherals, internal
UART and memory
- Scatter-gather chaining supported
- Four channels
Programmable Interrupt Controller supports
interrupts from a variety of sources
- Supports 7 external and 10 internal interrupts
- Edge triggered or level-sensitive
- Positive or negative active
- Non-critical or critical interrupt to processor
core
- Programmable critical interrupt priority
ordering
Two serial ports (16550 compatible UART)
One IIC interface
General Purpose I/O (GPIO) available
Supports JTAG for board level testing
Internal Processor Local Bus (PLB) runs at
SDRAM interface frequency
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Description
The PowerPC 405CR (PPC405CR) is a 32-bit RISC
embedded controller. High performance, peripheral
integration, and low cost make the device ideal for
wired communications, network printers, and other
computing applications.
This device is an easy upgrade for systems based on
PowerPC 403xx embedded processors, while provid-
ing a base for custom chip designs.
The controller is powered by a PPC405 embedded
core. This core tightly couples a 266 MHz CPU, MMU,
instruction and data caches, and debug logic. Fine-
tuning of the core reduces data transfer overhead,
minimizes pipeline stalls, and improves performance.
The PPC405CR employs the IBM CoreConnect
™
bus
architecture. This architecture, as implemented on the
PPC405CR, consists of a 64-bit, 133-MHz Processor
Local Bus (PLB) and a 32-bit, 66-MHz On-Chip
Peripheral Bus (OPB). High-performance peripherals
attach to the PLB and less performance-critical periph-
erals attach to the OPB.
Technology: CMOS SA-12E 0.25
µm
(0.18
µm
L
eff
)
Package: 27 mm, 316-ball enhanced plastic ball grid
array (E-PBGA)
Power (estimated): Typical 0.8 W, Maximum 2.0 W at
200MHz.
AMCC
1
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
