h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 843

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

21A.13.4 Auto-Program Mode
1. In auto-program mode, 128 bytes are programmed simultaneously. This should be carried out
2. A 128-byte data transfer is necessary even when programming fewer than 128 bytes. In this
3. The lower 7 bits of the transfer address must be low. If a value other than an effective address
4. Memory address transfer is performed in the second cycle (figure 21A-22). Do not perform
5. Do not perform a command write during a programming operation.
6. Perform one auto-program operation for a 128-byte block for each address. Two or more
7. Confirm normal end of auto-programming by checking I/O6. Alternatively, status read mode
8. Status polling I/O6 and I/O7 pin information is retained until the next command write. As long
by executing 128 consecutive byte transfers.
case, H'FF data must be written to the extra addresses.
is input, processing will switch to a memory write operation but a write error will be flagged.
transfer after the third cycle.
additional programming operations cannot be performed on a previously programmed address
block.
can also be used for this purpose (I/O7 status polling uses the auto-program operation end
decision pin).
as the next command write has not been performed, reading is possible by enabling
O E
.
Rev. 6.00 Feb 22, 2005 page 783 of 1484
Section 21A ROM (H8S/2636 Group)
REJ09B0103-0600
C E
and