HD64F36077GHV Renesas Electronics America, HD64F36077GHV Datasheet - Page 142

• Manufacturer Part Number: HD64F36077GHV
• Description: 16BIT MCU FLASH 56K, SMD, LQFP64
• Manufacturer: Renesas Electronics America

Specifications of HD64F36077GHV

• No. Of I/o's: 47
• Ram Memory Size: 4KB
• Cpu Speed: 20MHz
• No. Of Timers: 4
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 4.5V
• Core Size: 16bit
• Program Memory Size: 56KB
• Oscillator Type: External Only
• Controller Family/series: H8/300H
• Peripherals: ADC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Section 7 ROM
Table 7.3
7.3.2
On-board programming/erasing of an individual flash memory block can also be performed in user
program mode by branching to a user program/erase control program. The user must set branching
conditions and provide on-board means of supplying programming data. The flash memory must
contain the user program/erase control program or a program that provides the user program/erase
control program from external memory. As the flash memory itself cannot be read during
programming/erasing, transfer the user program/erase control program to on-chip RAM, as in boot
mode. Figure 7.2 shows a sample procedure for programming/erasing in user program mode.
Prepare a user program/erase control program in accordance with the description in section 7.4,
Flash Memory Programming/Erasing.
Rev. 1.00 Sep. 16, 2005 Page 112 of 490
REJ09B0216-0100
Host Bit Rate
19,200 bps
9,600 bps
4,800 bps
2,400 bps
Figure 7.2 Programming/Erasing Flowchart Example in User Program Mode
Programming/Erasing in User Program Mode
System Clock Frequencies for which Automatic Adjustment of LSI Bit Rate is
Possible
Branch to user program/erase control
Transfer user program/erase control
Execute user program/erase control
Branch to flash memory application
program (flash memory rewrite)
program to RAM
program in RAM
Program/erase?
Reset-start
program
System Clock Frequency Range of LSI
16 to 20 MHz
8 to 16 MHz
4 to 16 MHz
Yes
No
Branch to flash memory application
program