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參數資料
型號： CS89712-CB
廠商： CRYSTAL SEMICONDUCTOR CORP
元件分類： 微控制器/微處理器
英文描述： MOSFET 2N-CH 30V .1A EMT6
中文描述： 3 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PBGA256
封裝： PLASTIC, BGA-256
文件頁數： 1/170頁
文件大小： 2405K
代理商： CS89712-CB
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
1
Copyright
Cirrus Logic, Inc. 2001
(All Rights Reserved)
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
CS89712
High-Performance, Low-Power System-on-Chip with 10BASE-T Ethernet Controller
Features
l
ARM720T (ARM7 TDMI) processor
– 8 Kbytes of four-way set-associative cache
– MMU with 64-entry TLB
– Write Buffer
– Thumb code support enabled
l
Dynamically clocked at 18, 36, 49 or 74 MHz
l
10 Mbit Ethernet Controller with integrated PHY
l
Comprehensive Suite of Software Drivers
l
On-Chip Transmit and Receive RAM Buffers
l
10BASE-T Port with Analog Filters provides
automatic polarity detection and correction
l
Programmable Transmit Features:
– Automatic Re-transmission on Collision
– Automatic Padding and CRC Generation
l
Programmable Receive Features:
– Early Interrupts for Frame Pre-Processing
– Automatic Rejection of Erroneous Packets
Description
The low-power high-performance CS89712 is designed
for ultra-low-power communication applications such as
VoIP telephones, industrial control, data acquisition,
special purpose servers and RF to Ethernet bridges. The
core-logic functionality of the device is built around an
ARM720T processor with 8 Kbytes of four-way set-asso-
ciative unified cache and a write buffer. Incorporated into
the ARM720T is an enhanced memory management unit
(MMU) which allows for support of sophisticated operat-
ing systems like embedded Linux.
The CS89712 Ethernet port includes on-chip RAM and
10BASE-T transmit and receive filters.
ORDERING INFO
CS89712-CB
0 to 70° C
256 Ball PBGA 17x17 mm
32.768
KHZ
OSCILLATOR
PLL
INTERRUPT
CONTROLLER
POWER
MANAGEMENT
SSI1 (ADC)
LCD
CONTROLLER
ARM7TD
8-KBYTE
CACHE
MMU
TIMER
CODE
ARM720T
INTERNAL DATA BUS
PWM
3.6864 MHZ
32.768 KHZ
EINT[1-2], FIQ,
MEDCHG
BATOK, EXPWR
PWRFL, BATCHG
PORTS A, B, D (8-BIT)
PORT E (3-BIT)
KEYBD DRIVERS (0–7)
BUZZER DRIVE
DC-TO-DC
SSI (ADC)
INTERFACE
DAI / SSI / ADC
INTERFACE
UART
IrDA
D[0-31]
NPOR, RUN,
RESET, WAKEUP
EXPCLK, WORD,
NCS[0:3], EXPRDY,
WRITE
MOE, MWE, SDCLK,
SDQM[0:1], SDRAS,
SDCAS
A[0-27],
DRA[0-14]
LCD DRIVE
LED AND
PHOTODIODE
ASYNC
INTERFACE
2
GPIO
INTERNAL ADDRESS BUS
ON-CHIP
BOOT ROM
ASYNC
INTERFACE 1
ON-CHIP SRAM
48K BYTES
CL-PS6700
INTFCE.
PB[0:1], NCS[4:5]
EXPANSION
CONTROL
UART
SSI2
EPB
EPB BUS
RTC
FLASHING LED DRIVE
ICE-JTAG
TEST AND
DEVELOPMENT
WRITE
BUFFER
DAI
STATE CNTRL
MEMORY CONTROLLER
LCD
SDRAM CNTRL
10BASE-T
ETHERNET
FEB ‘01
DS502PP2
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