DF70844AD80FPV Renesas Electronics America, DF70844AD80FPV Datasheet - Page 1342

• Manufacturer Part Number: DF70844AD80FPV
• Description: IC SUPERH MCU FLASH 112LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7080r

Specifications of DF70844AD80FPV

• Core Size: 32-Bit
• Program Memory Size: 256KB (256K x 8)
• Core Processor: SH-2
• Speed: 80MHz
• Connectivity: EBI/EMI, FIFO, I²C, SCI, SSU
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 76
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• No. Of I/o's: 76
• Ram Memory Size: 16KB
• Cpu Speed: 80MHz
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 3V To 3.6V, 4.5V To 5.5V
• Embedded Interface Type: I2C, SCI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: R0K570865S001BE - KIT STARTER FOR SH7086R0K570865S000BE - KIT STARTER FOR SH7086HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Section 23 Flash Memory
• Bit-rate matching state
In bit-rate matching, the boot program measures the low-level intervals in a signal carrying H'00
data that is transmitted by the host, and calculates the bit rate from this. The bit rate can be
changed by the new-bit-rate selection command. On completion of bit-rate matching, the boot
program goes to the inquiry and selection state. The sequence of processing in bit-rate matching is
shown in figure 23.23.
Rev. 3.00 May 17, 2007 Page 1284 of 1582
REJ09B0181-0300
Wait for programming/erasure
user MAT/use boot MAT
selection
Erase
Figure 23.22 Flow of Processing by the Boot Program
Enter
programming/erasure state
Wait for inquiry and
Bit rate matching
selection
Programming
Reset
Programming
processing
Inquiry
Erasure
processing
processing
Erasure
Inquiry
Programming/erasure state
Inquiry-and-selection state
Selection
Checking
Bit rate matching state
processing
Checking
processing
Selection