3069RF-ZTAT Datasheet, PDF(663/1003 Page) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

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3069RF-ZTAT Datasheet, PDF (663/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

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18.9.4 Auto-Program Mode

(1) In auto-program mode, programming is in 128-byte units. That is, 128 bytes of data are

transferred in succession.

(2) Even in the programming of less than 128 bytes, 128 bytes of data must be transferred. H'FF

should be written to those addresses that are unnecessarily written to.

(3) Set the low seven bits of the address to be transferred to low level. Inputting an invalid address

will result in a programming error, although processing will proceed to the memory-

programming operation.

(4) The memory address is transferred in the 2nd cycle. Do not transfer addresses in the 3rd or later

cycles.

(5) Do not issue commands while programming is in progress.

(6) When programming, execute automatic programming once for each 128-byte block of

addresses. Programming the block at an address where programming has already been

performed is not possible.

(7) To confirm the end of automatic programming, check the signal on the I/O6 pin. Confirmation

in the status-read mode is also possible (status polling of the I/O7 pin is used to check the end

status of automatic programming).

(8) Status-polling information on the I/O6 and I/O7 pins is retained until the next command is

written. As long as no command is written, the information is made readable by setting CE and

OE for enabling.

For the AC characteristics in auto-program mode, see section 18.10.2, AC Characteristics and

Timing in Writer Mode.

18.9.5 Auto-Erase Mode

(1) Auto-erase mode only supports erasing of the entire memory.

(2) Do not perform command writing during auto erasing is in progress.

(3) To confirm the end of automatic erasing, check the signal on the I/O6 pin. Confirmation in the

status-read mode is also possible (status polling of the I/O7 pin is used to check the end status

of automatic erasure).

(4) Status polling information on the I/O6 and I/O7 pins is retained until the next command

writing. As long as no command is written, the information is made readable by setting CE

and OE for enabling.

For the AC characteristics in auto-erase mode, see section 18.10.2, AC Characteristics and Timing

in Writer Mode.

Rev. 5.0, 09/04, page 641 of 978

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