h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 728
![no-image](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__sml.jpg)
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 728 of 1165
- Download datasheet (6Mb)
Section 20 ROM
20.7.4
Erase-Verify Mode
In erase-verify mode, data is read after memory has been erased to check whether it has been
correctly erased.
After the elapse of the fixed erase time, clear the E bit in FLMCR1, then wait for at least (t
) µs
ce
before clearing the ESU bit to exit erase mode. After exiting erase mode, the watchdog timer
setting is also cleared. The operating mode is then switched to erase-verify mode by setting the
EV bit in FLMCR1. Before reading in erase-verify mode, a dummy write of H'FF data should be
made to the addresses to be read. The dummy write should be executed after the elapse of (t
) µs
sev
or more. When the flash memory is read in this state (verify data is read in 16-bit units), the data at
the latched address is read. Wait at least (t
) µs after the dummy write before performing this read
sevr
operation. If the read data has been erased (all 1), a dummy write is performed to the next address,
and erase-verify is performed. If the read data is unerased, set erase mode again, and repeat the
erase/erase-verify sequence as before. The maximum number of repetitions of the erase/erase-
verify sequence is indicated by the maximum erase count (N). When verification is completed,
exit erase-verify mode, and wait for at least (t
) µs. If erasure has been completed on all the erase
cev
blocks, clear the SWE bit in FLMCR1, and leave a wait time of at least (t
) µs.
cswe
If erasing multiple blocks, set a single bit in EBR1/EBR2 for the next block to be erased, and
repeat the erase/erase-verify sequence as before.
Rev. 5.00 Sep 22, 2005 page 702 of 1136
REJ09B0257-0500
Related parts for h8s-2646
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![h8s-2138](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2169](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2161b](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2110b](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2111b](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2158](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2172](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2635](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2649](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![h8s-2628](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![HD6417709S](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![M30291FCTHP](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
RENESAS MCU M16C FAMILY / M16C/Tiny SERIES
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
![R0K505210S000BE](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
Renesas Starter Kit for RX210
Manufacturer:
Renesas Electronics Corporation.
![R0K505630S000BE](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
EVALBOARD/Renesas StarterKit for RX630
Manufacturer:
Renesas Electronics Corporation.
![R0K50563NS000BE](/images/manufacturer_photos/0/5/561/renesas_electronics_corporation__tmb.jpg)
Part Number:
Description:
EVALBOARD/Renesas Starter Kit+ for RX63N
Manufacturer:
Renesas Electronics Corporation.