DF61657CN35FTV Renesas Electronics America, DF61657CN35FTV Datasheet - Page 707

• Manufacturer Part Number: DF61657CN35FTV
• Description: IC H8SX/1657 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61657CN35FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 35MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 768KB (768K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: 3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

18.8
When the mode pins (MD0, MD1, and MD2) are set to on-board programming mode and the reset
start is executed, a transition is made to on-board programming mode in which the on-chip flash
memory can be programmed/erased. On-board programming mode has three operating modes:
boot mode, user boot mode, and user program mode.
Table 18.5 shows the pin setting for each operating mode. For details on the state transition of
each operating mode for flash memory, see figure 18.2.
Table 18.5 On-Board Programming Mode Setting
18.8.1
Boot mode executes programming/erasing of the user MAT or user boot MAT by means of the
control command and program data transmitted from the externally connected host via the on-chip
SCI_4.
In boot mode, the tool for transmitting the control command and program data, and the program
data must be prepared in the host. The serial communication mode is set to asynchronous mode.
The system configuration in boot mode is shown in figure 18.6. Interrupts are ignored in boot
mode. Configure the user system so that interrupts do not occur.
Mode Setting
User boot mode
Boot mode
User program mode
On-Board Programming Mode
Boot Mode
tool and program
Programming
Host
data
Figure 18.6 System Configuration in Boot Mode
MD2
0
0
1
1
Control command,
program data
Response
Section 18 Flash Memory (0.18-µm F-ZTAT Version)
MD1
0
1
1
1
RxD4
TxD4
Software for
analyzing
control
commands
(on-chip)
SCI_4
Rev. 2.00 Jun. 28, 2007 Page 681 of 864
This LSI
On-chip
memory
Flash
RAM
MD0
0
1
0
1
REJ09B0341-0200