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COP8SCR9 Datasheet(PDF) 39 Page - Texas Instruments |
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COP8SCR9 Datasheet(HTML) 39 Page - Texas Instruments |
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39 / 105 page  COP8SBR9, COP8SCR9, COP8SDR9 www.ti.com SNOS537I – JUNE 2000 – REVISED MARCH 2013 Table 5-9. MICROWIRE/PLUS ISP Commands(1) (continued) Command Command Function Parameters Return Data Value (Hex) READ_BYTE Read Byte 0x1D Address High, Address Data Byte if Security not Low set. 0xFF if Security set. Option Register if address = 0xFFFF, regardless of Security BLOCKR Block Read 0xA3 Address High, Address n Data Bytes if Security Low, Byte Count (n) High, not set. Byte Count (n) Low n Bytes of 0xFF if Security 0 ≤ n ≤ 32767 set. WRITE_BYTE Write Byte 0x71 Address High, Address N/A Low, Data Byte BLOCKW Block Write 0x8F Address High, Address N/A Low, Byte Count (0 ≤ n ≤ 16), n Data Bytes EXIT EXIT 0xD3 N/A N/A (Device will Reset) INVALID N/A Any other invalid N/A command will be ignored 5.10.8 USER ISP AND VIRTUAL E 2 The following commands will support transferring blocks of data from RAM to flash program memory, and vice-versa. The user is expected to enforce application security in this case. • Erase the entire flash program memory (mass erase). NOTE: Execution of this command will force the device into the MICROWIRE/PLUS ISP mode. • Erase a page of flash memory at a specified address. • Read a byte from a specified address. • Write a byte to a specified address. • Copy a block of data from RAM into flash program memory. • Copy a block of data from program flash memory to RAM. The following table lists the User ISP/Virtual E2 commands, required parameters and return data, if applicable. The command entry point is used as an argument to the JSRB instruction. Table 5-11 lists the Ram locations and Peripheral Registers, used for User ISP and Virtual E2, and their expected contents. Please refer to the COP8 FLASH ISP User Manual for additional information and programming examples on the use of User ISP and Virtual E2. Table 5-10. User ISP/Virtual E2 Entry Points Command/ Command Function Parameters Return Data Label Entry Point cpgerase Page Erase 0x17 Register ISPADHI is loaded by the user with N/A (A page of memory beginning at the high byte of the address. ISPADHI, ISPADLO will be erased) Register ISPADLO is loaded by the user with the low byte of the address. cmserase Mass Erase 0x1A Accumulator A contains the confirmation N/A (The entire Flash Memory will be key 0x55. erased) creadbf Read Byte 0x11 Register ISPADHI is loaded by the user with Data Byte in Register ISPRD. the high byte of the address. Register ISPADLO is loaded by the user with the low byte of the address. Copyright © 2000–2013, Texas Instruments Incorporated Functional Description 39 Submit Documentation Feedback Product Folder Links: COP8SBR9 COP8SCR9 COP8SDR9 |
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