DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 623

• Manufacturer Part Number: DF3048X16V
• Description: MCU 5V 128K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• 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: Lead free / RoHS Compliant
• Eeprom Size: -

Table 19.7 On-Board Programming Mode Selection
Mode Selections
Boot mode
User program
mode
19.4.1
To use boot mode, a user program for programming and erasing the flash memory must be
provided in advance on the host machine (which may be a personal computer). Serial
communication interface 1 (SCI1) is used in asynchronous mode (see figure 19.3). If the
H8/3048F is placed in boot mode, after it comes out of reset, a built-in boot program is activated.
This program starts by measuring the low period of data transmitted from the host and setting the
bit rate register (BRR) accordingly. The H8/3048F’s built-in serial communication interface (SCI)
can then be used to download the user program from the host machine. The user program is stored
in on-chip RAM.
After the program has been stored, execution branches to address H'FF300 in modes 5 and 6 and
H'FFF300 in mode 7 in the on-chip RAM, and the program stored on RAM is executed to program
and erase the flash memory. Figure 19.4 shows the boot-mode execution procedure.
Boot Mode
HOST
Mode 5
Mode 6
Mode 7
Mode 5
Mode 6
Mode 7
Figure 19.3 Boot-Mode System Configuration
Section 19 Flash Memory (H8/3048F: Dual Power Supply (V
Receive data to be programmed
V
12 V
PP
Transmit verification data
MD
12 V
12 V
12 V
1
1
1
2
Rev. 7.00 Sep 21, 2005 page 597 of 878
MD
0
1
1
0
1
1
1
MD
1
0
1
1
0
1
RXD
TXD
0
H8/3048F
SCI1
1
1
REJ09B0259-0700
Notes
0: V
1: V
IL
IH
PP
= 12 V))