DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 668

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: 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): 4.5 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148BTE20; HD64F2148BTE20

Section 23 ROM
Bit
7
6
5, 4
3
2
1
0
Rev. 3.00 Mar 21, 2006 page 612 of 788
REJ09B0300-0300
Bit Name
FWE
SWE
—
EV
PV
E
P
Initial Value
1
0
All 0
0
0
0
0
R/W
R
R/W
R
R/W
R/W
R/W
R/W
Description
Flash Write Enable
Controls programming/erasing of on-chip flash
memory. This bit is always read as 0, and cannot be
modified.
Software Write Enable
When this bit is set to 1, flash memory
programming/erasing is enabled. When this bit is
cleared to 0, the EV, PV, E, and P bits in this register,
the ESU and PSU bits in FLMCR2, and all EBR1 and
EBR2 bits cannot be set to 1. Do not clear these bits
and SWE to 0 simultaneously.
Reserved
These bits are always read as 0 and cannot be
modified.
Erase-Verify
When this bit is set to 1 while SWE = 1, the flash
memory transits to erase-verify mode. When it is
cleared to 0, erase-verify mode is cancelled.
Program-Verify
When this bit is set to 1 while SWE = 1, the flash
memory transits to program-verify mode. When it is
cleared to 0, program-verify mode is cancelled.
Erase
When this bit is set to 1 while SWE = 1 and ESU = 1,
the flash memory transits to erase mode. When it is
cleared to 0, erase mode is cancelled.
Program
When this bit is set to 1 while SWE = 1 and PSU = 1,
the flash memory transits to program mode. When it is
cleared to 0, program mode is cancelled.