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DSP56F827 Datasheet(PDF) 8 Page - Freescale Semiconductor, Inc |
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DSP56F827 Datasheet(HTML) 8 Page - Freescale Semiconductor, Inc |
8 / 60 page 56F827 Technical Data, Rev. 12 8 Freescale Semiconductor Part 2 Signal/Connection Descriptions 2.1 Introduction The input and output signals of the 56F827 are organized into functional groups, as shown in Table 2-1 and as illustrated in Figure 2-1. Table 2-2 describes the signal or signals present on a pin. Table 2-1 Functional Group Pin Allocations Functional Group Number of Pins Power (VDD, VDDIO, VDDA or VDDA_ADC) (3,5,1,1) Ground (VSS, VSSIO, VSSA, orVSSA_ADC) (3,5,1,1) VPP 1 PLL and Clock 3 Address Bus1 16 Data Bus1 16 Bus Control 4 Quad Timer Module Ports1 4 JTAG/On-Chip Emulation (OnCE) 6 Dedicated General Purpose Input/Output 16 Synchronous Serial Interface (SSI) Port1 6 Serial Peripheral Interface (SPI) Port1 1. Alternately, GPIO pins 4 Serial Communications Interface1 (SCI0, SCI1) Port2 2. Alternately, SPI pins 4 Serial Communications Interface2 (SCI2) Port1 2 Analog to Digital Converter (ADC) 15 Programmable Chip Select (PCS)3 3. In addition, 2 Bus Control pins can be programmed as PCS[0-1]. 6 Interrupt and Program Control 5 |
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