KX-NS8290CE - Panasonic PBX Service Manual (repair manual). Page 8

8

Item

Specification

CPU

Function:

• Dual ARM11 (CSP + MSP architecture)

- Host CPU (CSP): ARM1136J,450MHz
- Media Stream CPU (MSP): ARM1136J,450MHz

• DSP resources: 350MHz
• 2 x Ethernet Independent port
• PCI 2.1 Host, Dual UARTs and 2xSPI
• 2x TDM buses supporting 128 DS0s per bus
• Intel/Motorola compatible host/External Bus IF
• I2C, 32 GPIO and Flexible Interrupt Schemes
• Process Geometry: 90nm
• Power: ~1.0 W typ. (1.5W max), 1.0-1.2V core,  <2W with memory (M82318)
• DDR2 SDRAM (x16), up to 1GB
• External Bus IF Supports up to 256MB NOR Flash
• Designed for Industrial Temp equipment applications
• 19x19mm 484-ball (0.8 mm) LBGA package 

- leaded balls (RoHS5/6) ,lead-free (RoHS6/6) available

System Memory

NOR FLASH ROM

Size:4MByte (2M x 16bit x 1chip)
Functions

• Boot loader Program
• System Configuration Parameters
• Hardware MAC address

DDR2 SDRAM

Size:256Mbyte (128M x 8 x 2chip)
Bus speed:133MHz
Functions

• System Work Memory

NAND FLASH ROM

Size:512MByte (512M x 8 x 1chip)
Functions

• OS and Application Program
• System Configuration Parameters
• Operation Log Store

Ethernet

Number of Port

1

Interface Spec

IEEE802.3 (10Base-T/100Base-Tx)

Connector

RJ45

Pin Assignment

Auto MDI/MDI-X

Speed

10/100Mbps half or full duplex operation (Auto Negotiation)

Cable

UTP (Cat5)

MAC

CPU Embedded

Serial I/F(UART)
For Debug Purpose

Number of Port

2
UART0:OS Console
UART1:Diag Login

Connector

Equipped only for Prototype (For Debug Purpose)

Pin Assignment

2 Wire (Tx/Rx)

Speed

Async 9.6 Kbps~115.2 Kbps

Hardware Flow

None

Real time clock (RTC)

Frequency Accuracy : ±50ppm
Control I/F : I2C-BUS (2 Wire)
Operating Voltage : 1.3~5.5V
RTC doesn't have Backup Battery

Display & Switch

SYSTEM
(Green/Orange/Red)

Used for System Status Display
(Software Controlled)

LINE
(Green)

Line Status Display
(Software Controlled)

LAN-LINK
(Green)

Ether Status Display (Hardware Controlled)
OFF : Link Down
ON : Link Up
Blink : Data Transmitting

LAN-100
(Orange)

Ether Link Speed Display (Hardware Controlled)
OFF : 10Mbps
Orange :100Mbps

Initialize

Used for

• Initialize Boot
• System Shut Down