HD6412320 RENESAS [Renesas Technology Corp], HD6412320 Datasheet - Page 866

• Manufacturer Part Number: HD6412320
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family H8S-2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 19 ROM
19.20.5 Auto-Program Mode
• In auto-program mode, 128 bytes are programmed simultaneously. For this purpose, 128
• A 128-byte data transfer must be performed even if writing fewer than 128 bytes; in this case,
• The lower 7 bits of the transfer address must be held low. If an invalid address is input,
• Memory address transfer is executed in the second cycle (figure 19.52). Do not perform
• Do not perform a command write during a programming operation.
• Perform one auto-programming operation for a 128-byte block for each address. One or more
• Confirm normal end of auto-programming by checking I/O
• Status polling I/O
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REJ09B0220-0600
consecutive byte data transfers should be performed.
H'FF data must be written to the extra addresses.
memory programming will be started but a programming error will occur.
transfer later than the second cycle.
additional programming operations cannot be carried out on address blocks that have already
been programmed.
can also be used for this purpose (the I/O
auto-program operation).
the next command write has not been performed, reading is possible by enabling CE and OE.
6
and I/O
7
information is retained until the next command write. As long as
7
status polling pin is used to identify the end of an
6
. Alternatively, status read mode