DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 712

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 22 ROM
Rev. 4.00 Sep 27, 2006 page 666 of 1130
REJ09B0327-0400
Notes: 1. Preprogramming (setting erase block data to all 0) is not necessary.
2. Verify data is read in 16-bit (W) units.
3. Set only one bit in EBR1or EBR2. More than one bit cannot be set.
4. Erasing is performed in block units. To erase a number of blocks, the individual blocks must be erased sequentially.
5. See section 26.2.6, Flash Memory Characteristics, for the values of x, y, z, , , , , , and N.
Figure 22.13 Erase/Erase-Verify Flowchart (Single-Block Erase)
Increment
address
(Mask ROM Version, H8S/2148 F-ZTAT, H8S/2147N F-ZTAT, H8S/2144 F-ZTAT, and H8S/2142 F-ZTAT)
NG
NG
Set block start address to verify address
H'FF dummy write to verify address
*
Clear ESU bit in FLMCR2
Clear SWE bit in FLMCR1
4
Set SWE bit in FLMCR1
Set ESU bit in FLMCR2
Clear EV bit in FLMCR1
Clear E bit in FLMCR1
Set EV bit in FLMCR1
Last address of block?
Set E bit in FLMCR1
erasing of all erase
Verify data = all 1?
Set EBR1, EBR2
Read verify data
End of erasing
Disable WDT
Enable WDT
Wait (z) ms
Wait (x) s
Wait (y) s
Wait ( ) s
Wait ( ) s
Wait ( ) s
Wait ( ) s
Wait ( ) s
blocks?
End of
n = 1
Start
OK
OK
OK
*
1
NG
*
*
*
*
Start of erase
*
Halt erase
*
*
*
*
*
5
5
3
5
5
5
5
5
5
2
Clear SWE bit in FLMCR1
Clear EV bit in FLMCR1
Erase failure
Wait ( ) s
n
N?
OK
*
5
NG
n
*
5
n + 1