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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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P89C51RB2BA датащи(PDF) 42 Page - NXP Semiconductors |
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P89C51RB2BA датащи(HTML) 42 Page - NXP Semiconductors |
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42 / 52 page  Philips Semiconductors Preliminary specification 89C51RB2/89C51RC2/ 89C51RD2 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM 1999 Sep 23 42 Table 8. Intel-Hex Records Used by In-System Programming RECORD TYPE COMMAND/DATA FUNCTION 00 Program Data :nnaaaa00dd....ddcc Where: Nn = number of bytes (hex) in record Aaaa = memory address of first byte in record dd....dd = data bytes cc = checksum Example: :10008000AF5F67F0602703E0322CFA92007780C3FD 01 End of File (EOF), no operation :xxxxxx01cc Where: xxxxxx = required field, but value is a “don’t care” cc = checksum Example: :00000001FF 02 Specify Oscillator Frequency :01xxxx02ddcc Where: xxxx = required field, but value is a “don’t care” dd = integer oscillator frequency rounded down to nearest MHz cc = checksum Example: :0100000210ED (dd = 10h = 16, used for 16.0–16.9 MHz) |
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