DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 600

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• 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: HD64F2345TE20; HD64F2345TE20

Section 17 ROM
Rev. 4.00 Feb 15, 2006 page 574 of 900
REJ09B0291-0400
Note: If a memory cell does not operate normally and cannot be erased, one H'FF byte is
After bit rate adjustment, H8S/2345
continuously at prescribed bit rate
host to indicate end of adjustment
H8S/2345 calculates bit rate and
of H'00 data transmitted by host
H8S/2345 measures low period
transmits one H'00 data byte to
Host confirms normal reception
indication (H'00), and transmits
H8S/2345 transmits one H'AA
sets value in bit rate register
of bit rate adjustment end
Host transfers data (H'00)
and execute reset-start
Set pins to boot mode
transmitted as an erase error, and the erase operation and subsequent operations
are halted.
After receiving H'55,
one H'55 data byte
data byte to host
Start
Figure 17.16 Boot Mode Execution Procedure
Host transmits programming control
program transferred to on-chip RAM
H8S/2345 transmits one H'AA data
program sequentially in byte units
of programming control program
number of bytes to host as verify
programming control program to
if data has already been written,
control program to on-chip RAM
Transfer received programming
memory data has been erased,
host as verify data (echo-back)
Check flash memory data, and
bytes (N), upper byte followed
H8S/2345 transmits received
H8S/2345 transmits received
Execute programming control
After confirming that all flash
Host transmits number
End of transmission
data (echo-back)
erase all blocks
by lower byte
byte to host
n = N?
n = 1
Yes
No
n + 1
n