ep7311 Cirrus Logic, Inc., ep7311 Datasheet - Page 12

• Manufacturer Part Number: ep7311
• Description: Ep7311 Data Sheet
• Manufacturer: Cirrus Logic, Inc.

EP7311
High-Performance, Low-Power System on Chip
System Design
As shown in system block diagram, simply adding desired
memory and peripherals to the highly integrated EP7311
12
Note:
EXTERNAL MEMORY-
MAPPED EXPANSION
ADDITIONAL I/O
A system can only use one of the following peripheral
interfaces at any given time: SSI2,CODEC or MCP.
PC CARD
SOCKET
CRYSTAL
CRYSTAL
SDRAM
SDRAM
FLASH
FLASH
×16
×16
×16
×16
CONTROLLER
PC CARD
BUFFERS
BUFFERS
LATCHES
AND
SDRAM
SDRAM
FLASH
FLASH
×16
×16
×16
×16
Figure 1. A Maximum EP7311 Based System
©
Copyright Cirrus Logic, Inc. 2005
(All Rights Reserved)
nCS[2]
nCS[3]
MOSCIN
RTCIN
nCS[4]
PB0
EXPCLK
D[0-31]
A[0-27]
nMOE
WRITE
nCS[0]
nCS[1]
CS[n]
WORD
SDRAS/
SDCAS
SDCS[0]
SDQM[0-3]
SDCS[1]
SDQM[0-3]
LEDFLSH
completes a low-power system solution. All necessary
interface logic is integrated on-chip.
DRIVE[0-1]
nEXTPWR
nBATCHG
SSIRXDA
WAKEUP
SSITXDA
SSIRXFR
SSITXFR
LEDDRV
ADCOUT
COL[0-7]
ADCCLK
SMPCLK
nPWRFL
nADCCS
SSICLK
DD[0-3]
PB[0-7]
BATOK
RXD1/2
PA[0-7]
PD[0-7]
PE[0-2]
FB[0-1]
TXD1/2
PHDIN
ADCIN
nPOR
FRM
RUN
DSR
DCD
CTS
CL1
CL2
M
COMPARATORS
TRANSCEIVERS
ADC
CONVERTERS
PHOTODIODE
SUPPLY UNIT
CODEC/SSI2/
KEYBOARD
IR LED AND
DC-TO-DC
2× RS-232
POWER
MCP
LCD
AND
DIGITIZER
BATTERY
INPUT
DC
DS506F1