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A000046 데이터시트(PDF) 30 Page - ATMEL Corporation |
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A000046 데이터시트(HTML) 30 Page - ATMEL Corporation |
30 / 35 page 30 8271DS–AVR–05/11 ATmega48A/PA/88A/PA/168A/PA/328/P 11.4 Errata ATmega88PA The revision letter in this section refers to the revision of the ATmega88PA device. 11.4.1 Rev. F • Analog MUX can be turned off when setting ACME bit 1. Analog MUX can be turned off when setting ACME bit If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared. Problem Fix/Workaround Clear the MUX3 bit before setting the ACME bit. 11.5 Errata ATmega168A The revision letter in this section refers to the revision of the ATmega168A device. 11.5.1 Rev. E • Analog MUX can be turned off when setting ACME bit 1. Analog MUX can be turned off when setting ACME bit If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared. Problem Fix/Workaround Clear the MUX3 bit before setting the ACME bit. 11.6 Errata ATmega168PA The revision letter in this section refers to the revision of the ATmega168PA device. 11.6.1 Rev E • Analog MUX can be turned off when setting ACME bit 1. Analog MUX can be turned off when setting ACME bit If the ACME (Analog Comparator Multiplexer Enabled) bit in ADCSRB is set while MUX3 in ADMUX is '1' (ADMUX[3:0]=1xxx), all MUX'es are turned off until the ACME bit is cleared. Problem Fix/Workaround Clear the MUX3 bit before setting the ACME bit. |
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