D12312SVF20V Renesas Electronics America, D12312SVF20V Datasheet - Page 607

• Manufacturer Part Number: D12312SVF20V
• Description: IC H8S/2312S MCU ROMLESS 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of D12312SVF20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Type: ROMless
• 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: 100-QFP
• For Use With: EDK2329 - DEV EVALUATION KIT H8S/2329
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

17.4.3
Mode Transitions: When the mode pins and the FWE pin are set in the reset state and a reset-
start is executed, the chip enters one of the operating modes shown in figure 17.3. In user mode,
flash memory can be read but not programmed or erased.
Flash memory can be programmed and erased in boot mode, user program mode, and programmer
mode.
Notes: Only make a transition between user mode and user program mode when the CPU is
FWE = 1,
SWE = 1
(on-chip ROM
User mode
enabled)
Flash Memory Operating Modes
not accessing the flash memory.
* MD2 = MD1 = MD0 = 0, PF2 = 1, PF1 = PF0 = 0
On-board programming mode
program mode
FWE = 0
or SWE = 0
User
Figure 17.3 Flash Memory Mode Transitions
MD1 = 1,
MD2 = 1,
FWE = 0
RES = 0
RES = 0
FWE = 1,
MD1 = 1,
MD2 = 0
Reset state
Boot mode
Rev.7.00 Feb. 14, 2007 page 573 of 1108
RES = 0
*
RES = 0
Programmer mode
REJ09B0089-0700
Section 17 ROM