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Atmel Electronic Components Datasheet

PC8240 Datasheet

Integrated Processor

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Features
6.6 SPEC int 95, 5.5 SPECfp95 at 266 MHz (Estimated)
Superscalar 603e Core
Integer Unit (IU), Floating-Point Unit (FPU) (User Enabled or Disabled), Load/Store Unit
(LSU), System Register Unit (SRU), and a Branch Processing Unit (BPU)
16-Kbyte Instruction Cache
16-Kbyte Data Cache
Lockable L1 Caches - Entire Cache or on a Per-way Basis up to 3 of 4 Ways
Dynamic Power Management
High-bandwidth Bus (32/64 bits Data Bus) to DRAM
Supports 1-Mbyte to 1-Gbyte DRAM Memory
32-bit PCI Interface Operating up to 66 MHz
PCI 2.1-compliant, 5.0V Tolerance
Fint Max = 200 MHz
FBus Max = 66 MHz
Description
The PC8240 combines a PowerPC603e core microprocessor with a PCI bridge. The
PC8240’s PCI support will allow system designers to rapidly design systems using peripherals
already designed for PCI and the other standard interfaces. The PC8240 also integrates a high-
performance memory controller which supports various types of DRAM and ROM. The PC8240
is the first of a family of products that provides system level support for industry standard inter-
faces with a PowerPC microprocessor core.
The peripheral logic integrates a PCI bridge, memory controller, DMA controller, EPIC interrupt
controller, I2O controller, and a two-wire interface controller. The 603e core is a full-featured,
high-performance processor with floating-point support, memory management, 16-Kbyte
instruction cache, 16-Kbyte data cache, and power management features. The integration
reduces the overall packaging requirements and the number of discrete devices required for an
embedded system.
The PC8240 contains an internal peripheral logic bus that interfaces the 603e core to the
peripheral logic. The core can operate at a variety of frequencies, allowing the designer to trade
off performance for power consumption. The 603e core is clocked from a separate PLL, which
is referenced to the peripheral logic PLL. This allows the microprocessor and the peripheral
logic block to operate at different frequencies, while maintaining a synchronous bus interface.
The interface uses a 64- or 32-bit data bus (depending on memory data bus width) and a 32-bit
address bus along with control signals that enable the interface between the processor and
peripheral logic to be optimized for performance. PCI accesses to the PC8240’s memory space
are passed to the processor bus for snooping purposes when snoop mode is enabled.
The PC8240’s features serve a variety of embedded applications. In this way, the 603e core
and peripheral logic remain general-purpose. The PC8240 can be used as either a PCI host or
an agent controller.
Integrated
Processor
Family
PC8240
Screening/Quality/Packaging
This product is manufactured in full compliance with:
• Upscreening based upon Atmel standards
• Industrial temperature range
(Tc = -40°C, Tc = +110°C)
(Tc = -40°C, Tc = +125°C): ZD3 suffix
• Core power supply:
2.5 ± 5 % V (L-Spec for 200 MHz)
• I/O power supply: 3.0V to 3.6V
• 352 Tape Ball Grid Array (TBGA)
TP suffix
TBGA352
Tape Ball Grid Array
Rev. 2149A–HIREL–05/02
1


Atmel Electronic Components Datasheet

PC8240 Datasheet

Integrated Processor

No Preview Available !

General Description
Block Diagram
Figure 1. Block Diagram
PC8240
Additional features:
• JTAG/COP interface
• Power management
The PC8240 integrated processor is comprised of a peripheral logic block and a 32-bit
superscalar PowerPC 603e core, as shown in Figure 1.
603e Processor Core Block
(64-bit) Two-instruction fetch
Processor
PLL
Branch
Processing
Unit
Instruction Unit
(BPU)
(64-bit) Two-instruction dispatch
System
Register
Unit
(SRU)
Integer
Unit
(IU)
Load/Store
Unit
(LSU)
Data
MMU
16-Kbyte
Data
Cache
Floating
Point
Unit
(FPU)
64-bit
Instruction
MMU
16-Kbyte
Instruction
Cache
I2C
5 IRQs/
16 Serial
Interrupts
Peripheral Logic
Bus
Peripheral Logic Block
Message
Controller
(I2O)
DMA
Controller
Address
(32-bit)
Data (64-bit)
Data Path
ECC Controller
Central
Control
Unit
Memory
Controller
Configuration
Registers
I2C
Controller
EPIC
Interrupt
Controller
/Timers
PCI Bus
Interface Unit
Address
PCI
Translator Arbiter
DLL
Peripheral Logic
PLL
Fanout
Buffers
Data Bus
(32- or 64-bit)
with 8-bit Parity
or ECC
Memory/ROM/PortX
Address and Control
SDRAM
Clocks
PCI
Clock In
PCI Bus
Clocks
32-bit Five Request/
PCI Interface Grant Pairs
Oscillator
Input
2 PC8240
2149A–HIREL–05/02


Part Number PC8240
Description Integrated Processor
Maker ATMEL
Total Page 30 Pages
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