PCX7457VGH1000NC Atmel, PCX7457VGH1000NC Datasheet

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PCX7457VGH1000NC

Manufacturer Part Number
PCX7457VGH1000NC
Description
IC MPU 32BIT 1000MHZ 483CBGA
Manufacturer
Atmel
Datasheet

Specifications of PCX7457VGH1000NC

Processor Type
PowerPC 32-Bit RISC
Speed
1.0GHz
Voltage
1.1V
Mounting Type
Surface Mount
Package / Case
483-CBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
-

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Part Number:
PCX7457VGH1000NC
Manufacturer:
Atmel
Quantity:
10 000
Features
Description
The PC7457 is implementations of the PowerPC
instruction set computer (RISC) microprocessors. This document describes pertinent
electrical and physical characteristics of the PC7457.
The PC7457 is the fourth implementation of the fourth generation (G4) microproces-
sors from Freescale. The PC7457 implements the full PowerPC 32-bit architecture
and is targeted at networking and computing systems applications. The PC7457 con-
sists of a processor core, a 512 Kbyte L2, and an internal L3 tag and controller which
support a glueless backside L3 cache through a dedicated high-bandwidth interface.
The core is a high-performance superscalar design supporting a double-precision
floating-point unit and a SIMD multimedia unit. The memory storage subsystem sup-
ports the MPX bus interface to main memory and other system resources. The L3
interface supports 1, 2, or 4M bytes of external SRAM for L3 cache and/or private
memory data. For systems implementing 4M bytes of SRAM, a maximum of 2M bytes
may be used as cache; the remaining 2M bytes must be private memory.
Note that the PC7457 is a footprint-compatible, drop-in replacement in a PC7455
application if the core power supply is 1.3V.
3000 Dhrystone 2.1 MIPS at 1.3 GHz
Selectable Bus Clock (30 CPU Bus Dividers up to 28x)
13 Selectable Core-to-L3 Frequency Divisors
Selectable MPx/60x Interface Voltage (1.8V, 2.5V)
Selectable L3 Interface of 1.8V or 2.5V
P
Conditions
Nap, Doze and Sleep Modes for Power Saving
Superscalar (Four Instructions Fetched Per Clock Cycle)
4 GB Direct Addressing Range
Virtual Memory: 4 Hexabytes (2
64-bit Data and 36-bit Address Bus Interface
Integrated L1: 36 KB Instruction and 32 KB Data Cache
Integrated L2: 512 KB
11 Independent Execution Units and Three Register Files
Write-back and Write-through Operations
f
f
INT
BUS
D
Typical 12.6W at 1 GHz at V
Max = 1 GHz (1.2 GHz to be Confirmed)
Max = 133 MHz/166 MHz
DD
52
)
= 1.3V; 8.3W at 1 GHz at V
®
microprocessor family of reduced
DD
= 1.1V, Full Operating
PowerPC 7457
RISC
Microprocessor
PC7457
Rev. 5345D–HIREL–07/06

Related parts for PCX7457VGH1000NC

PCX7457VGH1000NC Summary of contents

Page 1

Features • 3000 Dhrystone 2.1 MIPS at 1.3 GHz • Selectable Bus Clock (30 CPU Bus Dividers up to 28x) • 13 Selectable Core-to-L3 Frequency Divisors • Selectable MPx/60x Interface Voltage (1.8V, 2.5V) • Selectable L3 Interface of 1.8V or ...

Page 2

... Screening • CBGA Upscreenings Based on Atmel Standards • Full Military Temperature Range (T Industrial Temperature Range (T • HCTE Package for the 7457 PC7457 2 = -55 C, +125 C -40 C, +110 suffix CBGA 483 Ceramic Ball Grid Array GH suffix HITCE 483 Ceramic Ball Grid Array 5345D–HIREL–07/06 ...

Page 3

Block Diagram Figure 1-1. PC7457 Microprocessor Block Diagram 5345D–HIREL–07/06 PC7457 3 ...

Page 4

General Parameters Table 2-1 Table 2-1. Parameter Technology Die size Transistor count Logic design Packages Core power supply I/O power supply 3. Overview This section summarizes features of the PC7457 implementation of the PowerPC architecture. Major features of the ...

Page 5

Four integer units (IUs) that share 32 GPRs for integer operands – Five-stage FPU and a 32-entry FPR file – Four vector units and 32-entry vector register file (VRs) – Three-stage load/store unit (LSU) 5345D–HIREL–07/06 Eight-entry link register stack ...

Page 6

Dedicated adder calculates effective addresses (EAs) Supports store gathering Performs alignment, normalization, and precision conversion for floating-point data Executes cache control and TLB instructions Performs alignment, zero padding, and sign extension for integer data Supports hits under misses (multiple outstanding ...

Page 7

Instruction cache can provide four instructions per clock cycle; data cache can – Caches can be disabled in software – Caches can be locked in software – MESI data cache coherency maintained in hardware – Separate copy of data ...

Page 8

Memory programmable as write-back/write-through, caching-inhibited/caching- allowed, and memory coherency enforced/memory coherency not enforced on a page or block basis – Separate IBATs and DBATs (eight each) also defined as SPRs – Separate instruction and data translation lookaside buffers (TLBs) ...

Page 9

Thermal management facility provides software-controllable thermal management. – Instruction cache throttling provides control of instruction fetching to limit power • Performance monitor can be used to help debug system designs and improve software efficiency • In-system testability and debugging ...

Page 10

Signal Description Figure 4-1. PC7457 Microprocessor Signal Groups Address Arbitration A[0:35] Address AP[0:4] Transfer TT[0:4] TBST Address TSIZ[0:2] Transfer GBL Attributes AACK ARTRY Address Transfer SHD0/SHD1 Termination DBG Data DTI[0:3] Arbitration DRDY D[0:63] Data DP[0:7] Transfer Data Transfer Termination ...

Page 11

... Detailed Specification This specification describes the specific requirements for the microprocessor PC7457 in compli- ance with Atmel standard screening. 6. Applicable Documents 1. MIL-STD-883: Test methods and procedures for electronics 2. MIL-PRF-38535: Appendix A: General specifications for microcircuits The microcircuits are in accordance with the applicable documents and as specified herein. ...

Page 12

Recommended Operating Conditions Symbol Characteristic V Core supply voltage DD (2) AV PLL supply voltage Processor bus supply voltage bus supply voltage DD ( Input ...

Page 13

Table 6-1. BVSEL Signal 0 ¬HRESET HRESET 1 Notes: 6.2 Thermal Characteristics 6.2.1 Package Characteristics Table 6-2. Package Thermal Characteristics Symbol Characteristic (2)(3) R Junction-to-ambient thermal resistance, natural convection JA (2)(4) R Junction-to-ambient thermal resistance, natural convection, four-layer (2s2p) board ...

Page 14

Package Thermal Characteristics for HCTE Table 6-3 Table 6-3. Characteristic Junction-to-bottom of balls Junction-to-ambient thermal resistance, natural convection, four-layer (2s2p) board Junction to board thermal resistance Notes: 6.2.3 Internal Package Conduction Resistance For the exposed-die packaging technology, shown in ...

Page 15

Thermal Management Information This section provides thermal management information for the ceramic ball grid array (CBGA) package for air-cooled applications. Proper thermal control design is primarily dependent on the system-level design – the heat sink, airflow, and thermal interface ...

Page 16

Figure 6-4. 6.2.5.1 Heat Sink Selection Example For preliminary heat sink sizing, the die-junction temperature can be expressed as follows where the die-junction temperature the inlet cabinet ambient ...

Page 17

For this example ature below the maximum value of Though the die junction-to-ambient and the heat sink-to-ambient thermal resistances are a com- mon figure-of-merit used for comparing the thermal performance of various microelectronic packaging technologies, one should exercise ...

Page 18

Figure 6-5. Recommended Thermal Model of PC7447 and PC7457 Conductivity Bump and Underfill Substrate k Solder Ball and Air 6.2.6 Power Consumption Table 6-4. Full-Power Mode Core Power ...

Page 19

Electrical Characteristics 7.1 Static Characteristics Table 7-1 provides the DC electrical characteristics for the PC7457 Table 7-1. DC Electrical Specifications (see Symbol Characteristic ( Input high voltage (all inputs including SYSCLK (2)(6) V ...

Page 20

Dynamic Characteristics This section provides the AC electrical characteristics for the PC7457. After fabrication, func- tional parts are sorted by maximum processor core frequency as shown in section “Clock AC Specifications” and tested for conformance to the AC specifications ...

Page 21

Symbol Characteristic t / KHKL SYSCLK duty cycle measured at OV (4) t SYSCLK (5)(6) SYSCLK jitter Internal PLL relock time Notes: 1. Caution: The SYSCLK frequency and PLL_CFG[0:4] settings must be chosen such that the resulting SYSCLK (bus) fre- ...

Page 22

Processor Bus AC Specifications Table 7-3 ure 7-10 on page 33 provided in section Table 7-3. Processor Bus AC Timing Specifications (2) Symbol Parameter Input setup times: t A[0:35], AP[0:4] AVKH t D[0:63], DP[0:7] DVKH t AACK, ARTRY, BG, ...

Page 23

The symbology used for timing specifications herein follows the pattern for outputs. For example, t (reference)(state)(signal)(state) the SYSCLK reference (K) going to the high (H) state or input setup time. And t going high (H) until ...

Page 24

Figure 7-3 Figure 7-3. Input/Output Timing Diagram SYSCLK All Inputs All Outputs (Except TS, ARTRY, SHD0, SHD1) t KHOE All Outputs (Except TS, ARTRY, SHD0, SHD1) TS ARTRY, SHD0, SHD1 Note: 7.2.3 L3 Clock AC Specifications The L3_CLK frequency is ...

Page 25

Note that SYSCLK input jitter and L3_CLK[0:1] output jitter are already comprehended in the L3 bus AC timing specifications and do not need to be separately accounted for timing analysis. Clock skews, where applicable, do need ...

Page 26

Figure 7-4. L3_CLK_OUT Output Timing Diagram L3_CLK0 L3_CLK1 For PB2 or Late Write: L3_ECHO_CLK1 L3_ECHO_CLK3 7.2.4 L3 Bus AC Specifications The PC7457 L3 interface supports three different types of SRAM: source-synchronous, double data rate (DDR) MSUG2 SRAM, Late Write SRAMs, ...

Page 27

More specifically, certain signals within groups should be delay-matched with others in the same group while intergroup routing is less critical. Only the address and control signals are common to both SRAMs and additional timing margin is available for these ...

Page 28

Table 7-6. Effect of L3OHCR Settings on L3 Bus AC Timing (1) Field name Affected Signals L3_ADDR[18:0], L3AOH L3_CNTL[0:1] All signals latched by SRAM L3CLKn_OH connected to L3_CLKn L3_DATA[n:n + 7], L3DOHn L3_DP[n/8] Notes: 1. Refer to the PC7450 RISC ...

Page 29

An internal circuit delays the incoming L3_ECHO_CLKn signal such that it is positioned within the valid data window at the internal receiving latches. This delayed clock is used to capture the data into these latches which comprise the receive FIFO. ...

Page 30

Assumes default value of L3OHCR. See information I/O voltage mode must be configured by L3VSEL as described in must match mode selected as specified in Figure 7-6 shows the typical connection diagram for the PC7457 interfaced to ...

Page 31

Inputs L3_ECHO_CLK[0,1,2,3] L3 Data and Data Parity Inputs Notes and t as drawn here will be negative numbers, that is, input setup time will be time after the clock edge. L3DVEH L3DVEL Midpoint Voltage (GV ...

Page 32

Figure 7-8 shows the typical connection diagram for the PC7457 interfaced to PB2 SRAMs or Late Write SRAMs. Figure 7-8. Typical Synchronous 1M Byte L3 Cache Late Write or PB2 Interface PC7457 Denotes Receive (SRAM to PC7457) Aligned Signals Denotes ...

Page 33

Figure 7-9 shows the L3 bus timing diagrams for the PC7457 interfaced to PB2 or Late Write SRAMs. Figure 7-9. L3 Bus Timing Diagrams for Late Write or PB2 SRAMs Outputs L3_CLK[0,1] L3_ECHO_CLK[1,3] t L3CHOV ADDR, L3_CNTL t L3CHDV L3DATA ...

Page 34

Table 7-9. JTAG AC Timing Specifications (Independent of SYSCLK) (see “Recommended Operating Conditions Symbol Parameter Input Setup Times: (3) t Boundary-scan data DVJH t TMS, TDI IVJH Input Hold Times: (3) t Boundary-scan data DXJH t TMS, TDI IXJH Valid ...

Page 35

Figure 7-13. TRST Timing Diagram Note: Figure 7-14. Boundary-scan Timing Diagram Note: Figure 7-15. Test Access Port Timing Diagram Note: 5345D–HIREL–07/06 VM TRST VM = Midpoint Voltage (OV /2) DD TCK VM Boundary Data Inputs t JLDV t JLDX Boundary ...

Page 36

Preparation for Delivery 8.1 Handling MOS devices must be handled with certain precautions to avoid damage due to accumulation of static charge. Input protection devices have been designed in the chip to minimize the effect of static buildup. However, ...

Page 37

Figure 8- Figure 8-2. 5345D–HIREL–07/06 Pinout of the PC7457, 483 CBGA and HCTE Package as Viewed from the Top Surface ...

Page 38

Table 8-1. Pinout Listing for the PC7457, 483 CBGA and HCTE Packages Signal Name Pin Number E10, N4, E8, N5, C8, R2, A7, M2, A6, M1, A10, U2, N2, P8, M8, W4, (2) A[0:35] N6, U6, R5, Y4, P1, P4, ...

Page 39

Table 8-1. Pinout Listing for the PC7457, 483 CBGA and HCTE Packages (Continued) Signal Name Pin Number INT J6 (10) L1_TSTCLK H4 (12) L2_TSTCLK J2 (6)(7) L3VSEL A4 H11, F20, J16, E22, H18, G20, F22, G22, H20, K16, J18, H22, ...

Page 40

Table 8-1. Pinout Listing for the PC7457, 483 CBGA and HCTE Packages (Continued) Signal Name Pin Number (13) TEST[0:5] B10, H6, H10, D8, F9, F8 (10) TEST[6] A9 (7) TMS K4 (7)(16) TRST C1 ( TSIZ[0:2] L1,H3,D1 TT[0:4] ...

Page 41

Mechanical Dimensions for the PC7457, 483 CBGA Figure 9-1 provides the mechanical dimensions and bottom surface nomenclature for the PC7457, 483 CBGA package. Figure 9-1. Mechanical Dimensions and Bottom Surface Nomenclature for the PC7457, 483 CBGA Package A1 CORNER ...

Page 42

Substrate Capacitors for the PC7457, 483 CBGA Figure 10-1 shows the connectivity of the substrate capacitor pads for the PC7457, 483 CBGA. All capacitors are 100 nF. Figure 10-1. Substrate Bypass Capacitors for the PC7457, 483 CBGA A1 CORNER ...

Page 43

Mechanical Dimensions for the PC7457, 483 HCTE Figure 11-1 provides the mechanical dimensions and bottom surface nomenclature for the PC7457, 483 HCTE package. Figure 11-1. Mechanical Dimensions and Bottom Surface Nomenclature for the PC7457, 483 HCTE Package A1 CORNER ...

Page 44

Substrate Capacitors for the PC7457, 483 HCTE Figure 12-1 shows the connectivity of the substrate capacitor pads for the PC7457, 483 HCTE. All capacitors are 100 nF. Figure 12-1. Substrate Bypass Capacitors for the PC7457, 483 HCTE A1 CORNER ...

Page 45

Mechanical Dimensions for the PC7457, 483 HCTE ROHS compliant Figure 13-1 provides the mechanical dimensions and bottom surface nomenclature for the PC7457, 483 HCTE package. Figure 13-1. Mechanical Dimensions and Bottom Surface Nomenclature for the PC7457, 483 HCTE Package ...

Page 46

Figure 14-1. Substrate Bypass Capacitors for the PC7457, 483 HCTE A1 CORNER C1-1 C2-1 C1-2 C2-2 C18-2 C17-2 C16-2 C18-1 C17-1 PC7457 46 C3-1 C4-1 C5-1 C6-1 C3-2 C4-2 C5-2 C6-2 C15-2 C14-2 C13-2 C16-1 C15-1 C14-1 C13-1 Pad Number ...

Page 47

System Design Information This section provides system and thermal design recommendations for successful application of the PC7457. 15.1 Clocks The following sections provide more detailed information regarding the clocking o fthe PC7457. 15.1.1 Core Clocks and PLL Configuration The ...

Page 48

Table 15-1. PC7457 Microprocessor PLL Configuration Example for 1267 MHz Parts (Continued) Bus-to-Core Core-to-VCO PLL_CFG[0:4] Multiplier 10101 10x 10001 10.5x 10011 11x 00000 11.5x 10111 12x 11111 12.5x 01011 13x 11100 13.5x 11001 14x 00011 15x 11011 16x 00001 17x ...

Page 49

In PLL-bypass mode, the SYSCLK input signal clocks the internal processor directly and the PLL is disabled. However, the bus interface unit requires a 2x clock to function. Therefore, an additional signal, EXT_QUAL, must be driven at one-half the ...

Page 50

System Bus Clock (SYSCLK) and Spread Spectrum Sources Spread spectrum clock sources are an increasingly popular way to control electromagnetic inter- ference emissions (EMI) by spreading the emitted noise to a wider spectrum and reducing the peak noise magnitude ...

Page 51

Decoupling Recommendations Due to the PC7457 dynamic power management feature, large address and data buses, and high operating frequencies, the PC7457 can generate transient power surges and high fre- quency noise in its power supply, especially while driving large ...

Page 52

Figure 15-2. Driver Impedance Measurement Table 15-4 temperature and is relatively unaffected by bus voltage. Table 15-4. 15.6 Pull-up/Pull-down Resistor Requirements The PC7457 requires high-resistive (weak: 4 pull-up resistors on several control pins of the bus interface to ...

Page 53

During inactive periods on the bus, the address and transfer attributes may not be driven by any master and may, therefore, float in the high-impedance state for relatively long periods of time. Because the PC7457 must continually monitor these signals ...

Page 54

The COP header shown in and memory examination/modification, and other standard debugger features are possible through this interface – and can be as inexpensive as an unpopulated footprint for a header to be added when needed. The COP interface has ...

Page 55

Figure 15-3. JTAG Interface Connection From Target Board Sources (if any KEY 13 No Pin 15 16 COP Connector Physical Pin Out Notes: 1. RUN/STOP, normally found ...

Page 56

... For availability of the different versions, contact your local Atmel sales office. 2. The letter X in the part number designates a "Prototype" product that has not been qualified by Atmel. Reliability of a PCX part-number is not guaranteed and such part-number shall not be used in Flight Hardware. Product changes may still occur while shipping prototypes ...

Page 57

... Date Substantive Change(s) D 03/06 Remove PC7447. Modification Updated document to new Atmel template Updated section numbering and changed reference from part number specifications to addendums Added Rev. 1.2 devices, including increased L3 clock max frequency to 250 MHz and improved L3 AC timing Table 6-2 on page Table 7-2 on page specification to cycle-to-cycle jitter (instead of long- and short-term jitter) ...

Page 58

Table of Contents Features .................................................................................................... 1 Description ............................................................................................... 1 Screening .................................................................................................. 2 1 Block Diagram .......................................................................................... 3 2 General Parameters ................................................................................. 4 3 Overview ................................................................................................... 4 4 Signal Description ................................................................................. 10 5 Detailed Specification ............................................................................ 11 6 Applicable Documents .......................................................................... ...

Page 59

Definitions .............................................................................................. 56 17 Ordering Information ............................................................................. 56 18 Document Revision History .................................................................. 57 Table of Contents ...................................................................................... i PC7457 ii 15.6 Pull-up/Pull-down Resistor Requirements ...........................................................52 15.7 JTAG Configuration Signals ................................................................................53 16.1 Life Support Applications .....................................................................................56 5345D–HIREL–07/06 ...

Page 60

... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...

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