DF2552BR26DV Renesas Electronics America, DF2552BR26DV Datasheet - Page 790

• Manufacturer Part Number: DF2552BR26DV
• Description: IC H8S/2552 MCU FLASH 176-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2552BR26DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 20 Flash Memory
(2)
The bit rate is calculated by measuring the period of transfer of a low-level byte (H'00) from the
host. The bit rate can be changed by the command for a new bit rate selection. After the bit rate
has been adjusted, the boot program enters the inquiry and selection state. The bit-rate-adjustment
sequence is shown in figure 20.24.
Rev. 6.00 Sep. 24, 2009 Page 742 of 928
REJ09B0099-0600
Bit-Rate-Adjustment State
Programming/erasing
Operations for erasing
user MATs and user
Transition to
programming/erasing
wait
boot MATs
Programming
Operations for
Bit-rate-adjustment
programming
Figure 20.23 Boot Program States
Inquiry/response
state
wait
Reset
inquiry and selection
Erasing
Inquiry
Operations for
Operations for
erasing
Checking
Response
Operations for
Operations for
response
checking