cs89712 Cirrus Logic, Inc., cs89712 Datasheet
![no-image](/images/manufacturer_photos/0/1/142/cirrus_logic__inc__sml.jpg)
cs89712
Manufacturer Part Number
cs89712
Description
High-performance, Low-power System-on-chip With 10base-t Ethernet Controller
Manufacturer
Cirrus Logic, Inc.
Datasheet
1.CS89712.pdf
(170 pages)
- Current page: 1 of 170
- Download datasheet (2Mb)
Features
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Preliminary Product Information
P.O. Box 17847, Austin, Texas 78760
(512) 445 7222 FAX: (512) 445 7581
http://www.cirrus.com
ARM720T (ARM7 TDMI) processor
– 8 Kbytes of four-way set-associative cache
– MMU with 64-entry TLB
– Write Buffer
– Thumb code support enabled
Dynamically clocked at 18, 36, 49 or 74 MHz
10 Mbit Ethernet Controller with integrated PHY
Comprehensive Suite of Software Drivers
On-Chip Transmit and Receive RAM Buffers
10BASE-T Port with Analog Filters provides
automatic polarity detection and correction
Programmable Transmit Features:
– Automatic Re-transmission on Collision
– Automatic Padding and CRC Generation
Programmable Receive Features:
– Early Interrupts for Frame Pre-Processing
– Automatic Rejection of Erroneous Packets
High-Performance, Low-Power System-on-Chip with 10BASE-T Ethernet Controller
KEYBD DRIVERS (0–7)
FLASHING LED DRIVE
PORTS A, B, D (8-BIT)
RESET, WAKEUP
PWRFL, BATCHG
BUZZER DRIVE
BATOK, EXPWR
PORT E (3-BIT)
DAI / SSI / ADC
EINT[1-2], FIQ,
DC-TO-DC
NPOR, RUN,
3.6864 MHZ
INTERFACE
INTERFACE
32.768 KHZ
SSI (ADC)
MEDCHG
POWER
MANAGEMENT
32.768
OSCILLATOR
SSI1 (ADC)
CONTROLLER
STATE CNTRL
INTERRUPT
GPIO
PWM
RTC
PLL
DAI
-
KHZ
CODE
SSI2
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
EPB BUS
ARM720T
BOOT ROM
ARM7TD
8-KBYTE
CACHE
BUFFER
ON-CHIP
WRITE
TIMER
MMU
Copyright
10BASE-T
ETHERNET
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
EPB
(All Rights Reserved)
CS89712-CB
INTERNAL DATA BUS
INTERNAL ADDRESS BUS
CONTROLLER
ON-CHIP SRAM
MEMORY CONTROLLER
LCD
48K BYTES
Cirrus Logic, Inc. 2001
SDRAM CNTRL
LCD
EXPANSION
CL-PS6700
INTFCE.
UART
CONTROL
UART
ICE-JTAG
IrDA
MOE, MWE, SDCLK,
SDQM[0:1], SDRAS,
SDCAS
PB[0:1], NCS[4:5]
D[0-31]
EXPCLK, WORD,
NCS[0:3], EXPRDY,
WRITE
A[0-27],
DRA[0-14]
TEST AND
DEVELOPMENT
LCD DRIVE
LED AND
PHOTODIODE
ASYNC
INTERFACE 1
ASYNC
INTERFACE
0 to 70° C
256 Ball PBGA 17x17 mm
CS89712
2
DS502PP2
FEB ‘01
1
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