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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT46C22 датащи(PDF) 18 Page - Holtek Semiconductor Inc |
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HT46C22 датащи(HTML) 18 Page - Holtek Semiconductor Inc |
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18 / 46 page  HT46R22/HT46C22 Rev. 1.10 18 October 2, 2002 Label (ADCR) Bits Function ACS0 ACS1 ACS2 0 1 2 Defines the analog channel select. PCR0 PCR1 PCR2 3 4 5 Defines the port B configuration select. If PCR0, PCR1 and PCR2 are all 0, the ADC circuit is power off to reduce power consumption EOC 6 Provides response at the end of the A/D conversion. (0= end of A/D conversion) START 7 Starts the A/D conversion. (0 ®1®0 =start; 0 ®1® reset A/D converter) ADCR register ACS2 ACS1 ACS0 Analog Channel 00 0 A0 00 1 A1 01 0 A2 01 1 A3 10 0 A4 10 1 A5 11 0 A6 11 1 A7 Analog input channel selection PCR2 PCR1 PCR0 76543 2 10 0 0 0 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 0 0 1 PB7 PB6 PB5 PB4 PB3 PB2 PB1 A0 0 1 0 PB7 PB6 PB5 PB4 PB3 PB2 A1 A0 0 1 1 PB7 PB6 PB5 PB4 PB3 A2 A1 A0 1 0 0 PB7 PB6 PB5 PB4 A3 A2 A1 A0 1 0 1 PB7 PB6 PB5 A4 A3 A2 A1 A0 1 1 0 PB7 PB6 A5 A4 A3 A2 A1 A0 1 1 1 A7A6A5A4A3 A2 A1A0 Port B configuration 0 0 0 B 0 0 0 B 1 0 0 B 0 1 0 B * 7 6 T A D 1 0 0 B 0 0 0 B 0 0 0 B * * X X X B S T A R T E O C P C R 0 ~ P C R 2 A C S 0 ~ A C S 2 P o w e r O n R e s e t S t a r t o f A / D c o n v e r s i o n R e s e t A / D c o n v e r t e r S t a r t o f A / D c o n v e r s i o n R e s e t A / D c o n v e r t e r E n d o f A / D c o n v e r t e r E n d o f A / D c o n v e r t e r 1 : D e f i n e P B c o n f i g u r a t i o n 2 : S e l e c t a n a l o g c h a n n e l * * * 3 : S e l e c t A D C c l o c k ( E x a m p l e : 4 c h a n n e l , A N 2 , f S Y S / 8 ) 1 : A l l P B l i n e i s d i g i t a l i n p u t 2 : A / D c o n v e r t e r i s p o w e r o f f t o r e d u c e p o w e r c o n s u m p t i o n * 7 6 T A D " * " A / D c o n v e r t i n g t i m e i s 7 6 T A D " * * " X X X B m e a n s d o n ' t c a r e " * * * " A D C c l o c k m u s t b e f S Y S / 2 , f S Y S / 8 , f S Y S / 3 2 N o t e : A/D conversion timing |
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