EP7212 Datasheet, PDF (52/136 Pages) Cirrus Logic – HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)

CRYSTAL
CRYSTAL
PC CARD
SOCKET
CL-PS6700
PC CARD
CONTROLLER
×16
DRAM
×16
DRAM
×16
DRAM
×16
DRAM
×16
FLASH
×16
FLASH
×16
FLASH
×16
FLASH
EXTERNAL MEMORY-
MAPPED EXPANSION
BUFFERS
ADDITIONAL I/O
BUFFERS
AND
LATCHES
MOSCIN
RTCIN
nCS[4]
PB0
EXPCLK
D[31:0]
A[27:0]
nMOE
WRITE
nRAS[1]
nRAS[0]
nCAS[0]
nCAS[1]
nCAS[2]
nCAS[3]
nCS[0]
nCS[1]
CS[n]
WORD
NCS[2]
NCS[3]
LEDFLSH
DD[3:0]
CL1
CL2
FM
M
COL[7:0]
PA[7:0]
PB[7:0]
PD[7:0]
PE[2:0]
nPOR
nPWRFL
BATOK
nEXTPWR
nBATCHG
RUN
WAKEUP
DRIVE[1:0]
FB[1:0]
DAISSI-
CLK
SSITXFR
SSITXDA
SSIRXDA
LEDDRV
PHDIN
RXD1/2
TXD1/2
DSR
CTS
DCD
ADCCLK
nADCCS
ADCOUT
ADCIN
SMPCLK
EP7212
LCD
KEYBOARD
POWER
SUPPLY UNIT
AND
COMPARATORS
DC
INPUT
BATTERY
DC-TO-DC
CONVERTERS
CODEC/SSI2/
DAI
IR LED AND
PHOTODIODE
2× RS-232
TRANSCEIVERS
ADC
DIGITIZER
NOTE:
A system can only use one of the following
peripheral interfaces at any given time:
SSI2, codec, or DAI.
Figure 12. A Maximum EP7212 Based System
52
DS474PP1