DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 745

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• 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: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

23.5.3
Notes: 1. In normal mode, these bits cannot be modified and are always read as 0.
EBR1 and EBR2 are registers that specify the flash memory erase area block by block; bits 1 and
0 in EBR1 and bits 7 to 0 in EBR2 are readable/writable bits. EBR1 and EBR2 are each initialized
to H'00 by a reset, in hardware standby mode, software standby mode, subactive mode, subsleep
mode, and watch mode, and when the SWE bit in FLMCR1 is not set. When a bit in EBR1 and
EBR2 is set, the corresponding block can be erased. Other blocks are erase-protected. Set only one
bit in EBR1 and EBR2 (more than one bit cannot be set). When on-chip flash memory is disabled,
a read will return H'00, and writes are invalid.
The flash memory block configuration is shown in table 23.5.
Bit
EBR1
Initial value
Read/Write
Bit
EBR2
Initial value
Read/Write
2. Bits EB8 and EB9 are not present in the 64-kbyte versions; they must not be set to 1.
Section 23 ROM
Erase Block Registers 1 and 2 (EBR1, EBR2)
R/W *
EB7
—
—
7
0
7
0
1
(H8S/2148 F-ZTAT A-Mask Version, H8S/2147 F-ZTAT A-Mask Version, H8S/2144 F-ZTAT A-Mask Version)
R/W
EB6
—
—
6
0
6
0
EB5
R/W
—
—
5
0
5
0
EB4
R/W
—
—
4
0
4
0
Rev. 4.00 Sep 27, 2006 page 699 of 1130
EB3
R/W
—
—
3
0
3
0
EB2
R/W
—
—
2
0
2
0
EB9/— *
R/W *
REJ09B0327-0400
EB1
R/W
1
0
1
0
1
*
2
2
EB8/— *
R/W *
EB0
R/W
0
0
0
0
1
*
2
2