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TMS320F28075PZPQ Datasheet(PDF) 13 Page - Texas Instruments |
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TMS320F28075PZPQ Datasheet(HTML) 13 Page - Texas Instruments |
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13 / 182 page  TMS320F28075 www.ti.com SPRS902B – OCTOBER 2014 – REVISED OCTOBER 2015 4.2 Signal Descriptions Table 4-1 describes the signals. The GPIO function is the default at reset, unless otherwise mentioned. The peripheral signals that are listed under them are alternate functions. Some peripheral functions may not be available in all devices. See Table 3-1 for details. All GPIO pins are I/O/Z and have an internal pullup, which can be selectively enabled or disabled on a per-pin basis. This feature only applies to the GPIO pins. The pullups are not enabled at reset. Table 4-1. Signal Descriptions TERMINAL PTP PZP I/O/Z(1) DESCRIPTION MUX NAME PIN PIN POSITION NO. NO. ADC, DAC, AND COMPARATOR SIGNALS ADC-A high reference. Place at least a 1-µF capacitor on this VREFHIA 37 19 I pin. This capacitor should be placed as close to the device as possible between the VREFHIA and VREFLOA pins. ADC-B high reference. Place at least a 1-µF capacitor on this VREFHIB 53 37 I pin. This capacitor should be placed as close to the device as possible between the VREFHIB and VREFLOB pins. ADC-D high reference. Place at least a 1-µF capacitor on this VREFHID 55 – I pin. This capacitor should be placed as close to the device as possible between the VREFHID and VREFLOD pins. ADC-A low reference. On the PZP package, pin 17 is double-bonded to VSSA and VREFLOA 33 17 I VREFLOA. On the PZP package, pin 17 must be connected to VSSA on the system board. VREFLOB 50 34 I ADC-B low reference VREFLOD 51 – I ADC-D low reference ADCIN14 I Input 14 to all ADCs. This pin can be used as a general- purpose ADCIN pin or it can be used to calibrate all ADCs 44 26 together from an external reference. CMPIN4P I Comparator 4 positive input ADCIN15 I Input 15 to all ADCs. This pin can be used as a general- purpose ADCIN pin or it can be used to calibrate all ADCs 45 27 together from an external reference. CMPIN4N I Comparator 4 negative input ADCINA0 I ADC-A input 0. There is a 50-k Ω internal pulldown on this pin in both an ADC input or DAC output mode which cannot be 43 25 disabled. DACOUTA O DAC-A output ADCINA1 I ADC-A input 1. There is a 50-k Ω internal pulldown on this pin in both an ADC input or DAC output mode which cannot be 42 24 disabled. DACOUTB O DAC-B output ADCINA2 I ADC-A input 2 41 23 CMPIN1P I Comparator 1 positive input ADCINA3 I ADC-A input 3 40 22 CMPIN1N I Comparator 1 negative input ADCINA4 I ADC-A input 4 39 21 CMPIN2P I Comparator 2 positive input ADCINA5 I ADC-A input 5 38 20 CMPIN2N I Comparator 2 negative input Copyright © 2014–2015, Texas Instruments Incorporated Terminal Configuration and Functions 13 Submit Documentation Feedback Product Folder Links: TMS320F28075 |
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