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