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S80L186EB16 Datasheet(PDF) 25 Page - InnovASIC, Inc |
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S80L186EB16 Datasheet(HTML) 25 Page - InnovASIC, Inc |
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25 / 85 page  IA186EB/IA188EB Data Sheet 8-Bit/16-Bit Microcontrollers July 10, 2011 IA211080314-13 http://www.Innovasic.com UNCONTROLLED WHEN PRINTED OR COPIED Customer Support: Page 25 of 85 1-888-824-4184 2.2 IA186EB Pin/Signal Descriptions Descriptions of the pin and signal functions for the IA186EB microcontroller are provided in Table 7. Several of the IA186EB pins have different functions depending on the operating mode of the device. Each of the different signals supported by a pin is listed and defined in Table 7— indexed alphabetically in the first column of the table. Additionally, the name of the pin associated with the signal as well as the pin numbers for the PLCC, LQFP, and PQFP packages are provided in the ―Pin‖ column. Signals not used in a specific package type are designated ―NA.‖ Table 7. IA186EB Pin/Signal Descriptions Signal Pin Description Name PLCC LQFP PQFP a16 (output only) a16 80 66 29 address Bits [16 –19]. Input/Output. These pins provide the four most-significant bits of the Address Bus. During the address portion of the IA186EB bus cycle, Address Bits [16 –19] are presented on the bus and can be latched using the ale signal (see table entry). During the data portion of the IA186EB bus cycle, these lines are driven to a logic 0. a17 (output only) a17 81 67 30 a18 (output only) a18 82 68 31 a19 a19/once_n 83 69 32 ad0 ad0 61 47 10 address/data Bits [0 –15]. Input/Output. These pins provide the multiplexed Address Bus and Data Bus. During the address portion of the IA186EB bus cycle, Address Bits [0 –15] are presented on the bus and can be latched using the ale signal (see next table entry). During the data portion of the IA186EB bus cycle, 8- or 16-bit data are present on these lines. ad1 ad1 66 52 15 ad2 ad2 68 54 17 ad3 ad3 70 56 19 ad4 ad4 72 58 21 ad5 ad5 74 60 23 ad6 ad6 76 62 25 ad7 ad7 78 64 27 ad8 ad8 62 48 11 ad9 ad9 67 53 16 ad10 ad10 69 55 18 ad11 ad11 71 57 20 ad12 ad12 73 59 22 ad13 ad13 75 61 24 ad14 ad14 77 63 26 ad15 ad15 79 65 28 |
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