DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 12

• Manufacturer Part Number: DF3048X16V
• Description: MCU 5V 128K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Rev. 7.00 Sep 21, 2005 page x of xxiv
Item
19.5.6 Erasing
Flowchart and
Sample Program
Flowchart for
Erasing Multiple
Blocks
Figure 19.12
Multiple-Block Erase
Flowchart
Page
616
Revision (See Manual for Details)
Figure amended
Erase-verify
next block
Address + 1
address
No
Select erase mode (E bit = 1 in FLMCR)
Clear EBR bit of erase-verified block
Wait initial value setting x = 6.25 ms
No
Dummy write to verify address
(flash memory latches address)
Set top address of block as
Enable watchdog timer
Select erase-verify mode
Disable watchdog timer
(EV bit = 1 in FLMCR)
(EBR1 = EBR2 = 0?)
All blocks erased?
Yes
address in block?
All erased blocks
Yes
Clear
verify address
Wait (t
Wait (t
(read memory)
OK
Clear EV bit
End of erase
Yes
Wait (x) ms
Clear E bit
verified?
Verify
Last
V
VS1
VS2
PP
) s
) s
E
bit
*5
*5
*2
*
3
No good
No
*4
Erasing ends
(clear bits of blocks to be erased to 0)
Double the erase time (x
All erased blocks
Clear erase block registers
verified?
Clear
Yes
Yes
Erase error
5. t
6. The erase time x is successively
n
n
N?
V
z:
t
N:
incremented by the initial set value
value of 10 ms or less should be
set, and the time for one erasure
should be 50 ms or less.
4?
No
VS1
VS2
PP
2n
E
: 4 µs
: 2 s
Erase-verify next block
–1
bit
5 to 10 s
602
(n = 1, 2, 3, 4). An initial
No
2
x)
No
*6
Yes
n + 1
n