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ATmega162 データシート(PDF) 243 Page - ATMEL Corporation |
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ATmega162 データシート(HTML) 243 Page - ATMEL Corporation |
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243 / 324 page  243 2513K–AVR–07/09 ATmega162/V Reading the Calibration Byte The algorithm for reading the calibration byte is as follows (refer to “Programming the Flash” on page 237 for details on Command and Address loading): 1. A: Load Command “0000 1000”. 2. B: Load Address Low Byte, 0x00. 3. Set OE to “0”, and BS1 to “1”. The Calibration byte can now be read at DATA. 4. Set OE to “1”. Parallel Programming Characteristics Figure 102. Parallel Programming Timing, Including some General Timing Requirements Figure 103. Parallel Programming Timing, Loading Sequence with Timing Requirements (1) Note: 1. The timing requirements shown in Figure 102 (i.e., tDVXH, tXHXL, and tXLDX) also apply to load- ing operation. Data & Contol (DATA, XA0/1, BS1, BS2) XTAL1 t XHXL t WLWH t DVXH t XLDX t PLWL t WLRH WR RDY/BSY PAGEL t PHPL t PLBX t BVPH t XLWL t WLBX t BVWL WLRL XTAL1 PAGEL t PLXH XLXH t t XLPH ADDR0 (low byte) DATA (low byte) DATA (high byte) ADDR1 (low byte) DATA BS1 XA0 XA1 LOAD ADDRESS (LOW BYTE) LOAD DATA (LOW BYTE) LOAD DATA (HIGH BYTE) LOAD DATA LOAD ADDRESS (LOW BYTE) |
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