sc14428 National Semiconductor Corporation, sc14428 Datasheet - Page 2
sc14428
Manufacturer Part Number
sc14428
Description
Baseband Processor Dect Wdct
Manufacturer
National Semiconductor Corporation
Datasheet
1.SC14428.pdf
(6 pages)
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3.0 System Diagram
SPI
ACCESS
BUS2
P2[7-0]
PWM
ACCESS
BUS1
HEADSET
30W
P1[7-0]
CODEC
AFE
PSTN
(Continued)
IF
P0[7-0]
UART
IRDA
GENDSP
CODEC
ISDN,
PCM
IF
DMA
1->5
Figure 1. SC14428 Block diagram
SDI+
ADPCM
16KBYTE
SHARED
6KBYTE
DATA
RAM
RAM
16 BIT MICRO CONTROLLER
DEDICATED INSTRUCTION
CR16C COMPACTRISC
2
PROCESSOR
ENCRYP
SYSTEM BUS
8 KBYTE
INTERFACE
FLASH
TION
DATA
16 BITS
16 BITS
MICRO CODE
FIR FILTER
GAUSSIAN
8 BIT DAC
SHAPER
1 KBYTE
3 BITS
RAM
BMC
ICU
RECOVERY
CLOCK
RF INTERFACE
SCLK
CONTROL
TRIMMING
DIVIDER
TIMERS
CLOCK
PINS
XTAL
PLL
RF
MUX
BATTERY & CHARGE
DC/DC CONVERTOR
2X VOLTAGE
REGULATOR
P3[7-1]
CONTROL
(Confidential) Revision 1.0
MICRO
WIRE
8 BIT
ADC
FLASH/
BOOT
ROM
ROM
SCALER
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