DF2328BVF25V Renesas Electronics America, DF2328BVF25V Datasheet - Page 795

• Manufacturer Part Number: DF2328BVF25V
• Description: IC H8S MCU FLASH 256K 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2328BVF25V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: HD64F2328BVF25V

• The contents of the CPU’s internal general registers are undefined at this time, so these
• Initial settings must also be made for the other on-chip registers.
• Boot mode can be entered by making the pin settings shown in table 19.9 and executing a
• Boot mode can be cleared by driving the reset pin low, waiting at least 20 states, then setting
• Do not change the mode pin input levels in boot mode.
• If the mode pin input levels are changed (for example, from low to high) during a reset, the
Notes: 1. Mode pins input must satisfy the mode programming setup time (t
19.6.2
When set to user program mode, the chip can program and erase its flash memory by executing a
user program/erase control program. Therefore, on-board reprogramming of the on-chip flash
memory can be carried out by providing on-board means supply of programming data, and storing
a program/erase control program in part of the program area if necessary.
To select user program mode, select a mode that enables the on-chip flash memory (mode 6 or 7).
In this mode, on-chip supporting modules other than flash memory operate as they normally
would in modes 6 and 7.
The flash memory itself cannot be read while the SWE bit is set to 1 to perform programming or
erasing, so the control program that performs programming and erasing should be run in on-chip
RAM or external memory. When the program is located in external memory, an instruction for
programming the flash memory and the following instruction should be located in on-chip RAM.
registers must be initialized immediately after branching to the programming control program.
In particular, since the stack pointer (SP) is used implicitly in subroutine calls, etc., a stack area
must be specified for use by the programming control program.
reset-start.
the mode pins, and executing reset release *
overflow reset.
state of ports with multiplexed address functions and bus control output pins (AS, RD, HWR)
will change according to the change in the microcomputer’s operating mode *
Therefore, care must be taken to make pin settings to prevent these pins from becoming output
signal pins during a reset, or to prevent collision with signals outside the microcomputer.
2. See section 9, I/O Ports.
User Program Mode
respect to the reset release timing.
1
. Boot mode can also be cleared by a WDT
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Section 19 ROM
= 200 ns) with
.