DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 156

• Manufacturer Part Number: DF2398F20V
• Description: IC H8S/2300 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398F20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• 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): 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: 128-QFP
• For Use With: YR0K42378FC000BA - KIT EVAL FOR H8S/2378
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

16-Bit Access Space: Figure 6-5 illustrates data alignment control for the 16-bit access space. With the 16-bit access
space, the upper data bus (D
accessed at one time is one byte or one word, and a longword transfer instruction is executed as two word transfer
instructions.
In byte access, whether the upper or lower data bus is used is determined by whether the address is even or odd. The
upper data bus is used for an even address, and the lower data bus for an odd address.
Rev.6.00 Oct.28.2004 page 126 of 1016
REJ09B0138-0600H
Figure 6-5 Access Sizes and Data Alignment Control (16-Bit Access Space)
Byte size
Byte size
Word size
Longword
size
15
to D
8
) and lower data bus (D
• Even address
• Odd address
1st bus cycle
2nd bus cycle
D
7
Upper data bus
15
to D
0
) are used for accesses. The amount of data that can be
D
8
D
Lower data bus
7
D
0