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34708 Datasheet(PDF) 140 Page - Freescale Semiconductor, Inc |
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34708 Datasheet(HTML) 140 Page - Freescale Semiconductor, Inc |
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140 / 159 page  Analog Integrated Circuit Device Data Freescale Semiconductor 140 MC34708 Functional Block Description TSEN 12 R/W DIGRESETB 0x0 Enable the Touch screen from low power mode. TSSTART 13 R/W DIGRESETB 0x0 Request a start of the ADC Reading Sequencer for Touch screen readings. TSCONT 14 R/W DIGRESETB 0x0 Run ADC reads of Touch screen continuously when high or one time when low. TSHOLD 15 R/W DIGRESETB 0x0 Hold the ADC reading Sequencer while saved Touch screen results are read from SPI TSSTOP[2:0] 18-16 R/W DIGRESETB 0x0 Just like the ADSTOP above, but for the Touchscreen read programming. This will allow independent code for ADC Sequence readings and touchscreen ADC Sequence readings. Spare 19 R/W DIGRESETB 0x0 Not available TSPENDETEN 20 R/W DIGRESETB 0x0 Enable the Touchscreen Pen Detection. Note that TSEN must be off for Pen Detection. Spare 23-21 R/W DIGRESETB 0x0 Not available Table 148. Register 44, ADC 1 Name Bit # R/W Reset Default Description ADDLY1[3:0] 3-0 R/W DIGRESETB 0x0 This will allow delay before the ADC readings. ADDLY2[3:0] 7:4 R/W DIGRESETB 0x0 This will allow delay between each of ADC readings in a set. ADDLY3[3:0] 11-8 R/W DIGRESETB 0x0 This will allow delay after the set of ADC readings. This delay is only valid between subsequent wrap around reading sequences with ADCONT TSDLY1[3:0] 15-12 R/W DIGRESETB 0x0 This will allow delay before the ADC Touch screen readings. This is like the ADDLY1, but allows independent programming of touchscreen readings from general purpose ADC readings to prevent code replacement in the system. TSDLY2[3:0] 19-16 R/W DIGRESETB 0x0 This will allow delay between each of ADC Touch screen readings in a set. This is like the ADDLY2, but allows independent programming of touchscreen readings from general purpose ADC readings to prevent code replacement in the system. TSDLY3[3:0] 23-20 R/W DIGRESETB 0x0 This will allow delay after the set of ADC Touch screen readings. This delay is only valid between subsequent wrap around reading sequences with TSCONT mode. This is like the ADDLY3, but allows independent programming of touchscreen readings from general purpose ADC readings to prevent code replacement in the system. Table 149. Register 45, ADC 2 Name Bit # R/W Reset Default Description ADSEL0[3:0] 3-0 R/W DIGRESETB 0x0 Channel Selection to place in ADRESULT0 ADSEL1[3:0] 7-4 R/W DIGRESETB 0x0 Channel Selection to place in ADRESULT1 ADSEL2[3:0] 11-8 R/W DIGRESETB 0x0 Channel Selection to place in ADRESULT2 ADSEL3[3:0] 15-12 R/W DIGRESETB 0x0 Channel Selection to place in ADRESULT3 Table 147. Register 43, ADC 0 Name Bit # R/W Reset Default Description |
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