DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 730

• 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
Do not use interrupts while flash memory is being programmed or erased.
All interrupt requests, including NMI, should be disabled to give priority to program/erase
operations.
Do not perform additional programming. Erase the memory before reprogramming.
In on-board programming, perform only one programming operation on a 32-byte programming
unit block. In programmer mode, too, perform only one programming operation on a 128-byte
programming unit block. Programming should be carried out with the entire programming unit
block erased.
Before programming, check that the chip is correctly mounted in the PROM programmer.
Overcurrent damage to the device can result if the index marks on the PROM programmer socket,
socket adapter, and chip are not correctly aligned.
Do not touch the socket adapter or chip during programming.
Touching either of these can cause contact faults and write errors.
22.12
The mask ROM version does not have the internal registers for flash memory control that are
provided in the F-ZTAT version. Table 22.22 lists the registers that are present in the F-ZTAT
version but not in the mask ROM version. If a register listed in table 22.22 is read in the mask
ROM version, an undefined value will be returned, Therefore, if application software developed
on the F-ZTAT version is switched to a mask ROM version product, it must be modified to ensure
that the registers in table 22.22 have no effect.
Table 22.22 Registers Present in F-ZTAT Version but Absent in Mask ROM Version
Register
Flash memory control register 1
Flash memory control register 2
Erase block register 1
Erase block register 2
Rev. 4.00 Sep 27, 2006 page 684 of 1130
REJ09B0327-0400
Note on Switching from F-ZTAT Version to Mask ROM Version
(Mask ROM Version, H8S/2148 F-ZTAT, H8S/2147N F-ZTAT, H8S/2144 F-ZTAT, and H8S/2142 F-ZTAT)
Abbreviation
FLMCR1
FLMCR2
EBR1
EBR2
Address
H'FF80
H'FF81
H'FF82
H'FF83