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P89C660HFA Datasheet(PDF) 67 Page - NXP Semiconductors |
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P89C660HFA Datasheet(HTML) 67 Page - NXP Semiconductors |
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67 / 89 page  Philips Semiconductors Product data P89C660/P89C662/P89C664/ P89C668 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM 2002 Oct 28 67 RECORD TYPE COMMAND/DATA FUNCTION 03 Miscellaneous Write Functions :nnxxxx03ffssddcc Where: nn = number of bytes (hex) in record xxxx = required field, but value is a “don’t care” 03 = Write Function ff = subfunction code ss = selection code dd = data input (as needed) cc = checksum Subfunction Code = 01 (Erase Blocks) ff = 01 ss = block code as shown below: block 0, 0k to 8k, 00H block 1, 8k to 16k, 20H block 2, 16k to 32k, 40H block 3, 32k to 48k, 80H block 4, 48k to 64k, C0H Example: :0200000301C03C erase block 4 Subfunction Code = 04 (Erase Boot Vector and Status Byte) ff = 04 ss = don’t care Example: :020000030400F7 erase boot vector and status byte Subfunction Code = 05 (Program Security Bits) ff = 05 ss = 00 program security bit 1 (inhibit writing to Flash) 01 program security bit 2 (inhibit Flash verify) 02 program security bit 3 (disable external memory) Example: :020000030501F5 program security bit 2 Subfunction Code = 06 (Program Status Byte or Boot Vector) ff = 06 ss = 00 program status byte 01 program boot vector Example: :030000030601FCF7 program boot vector with 0FCH Subfunction Code = 07 (Full Chip Erase) Erases all blocks, security bits, and sets status and boot vector to default values ff = 07 ss = don’t care dd = don’t care Example: :0100000307F5 full chip erase 04 Display Device Data or Blank Check – Record type 04 causes the contents of the entire Flash array to be sent out the serial port in a formatted display. This display consists of an address and the contents of 16 bytes starting with that address. No display of the device contents will occur if security bit 2 has been programmed. Data to the serial port is initiated by the reception of any character and terminated by the reception of any character. General Format of Function 04 :05xxxx04sssseeeeffcc Where: 05 = number of bytes (hex) in record xxxx = required field, but value is a “don’t care” 04 = “Display Device Data or Blank Check” function code ssss = starting address eeee = ending address ff = subfunction 00 = display data 01 = blank check cc = checksum Example: :0500000440004FFF0069 display 4000–4FFF |
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