DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 249

• 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: -

Full Address Mode (Cycle Steal Mode): Figure 7-20 shows a transfer example in which TEND output is enabled and
word-size full address mode transfer (cycle steal mode) is performed from external 16-bit, 2-state access space to external
16-bit, 2-state access space.
A one-byte or one-word transfer is performed, and after the transfer the bus is released. While the bus is released one bus
cycle is inserted by the CPU or DTC.
In the transfer end cycle (the cycle in which the transfer counter reaches 0), a one-state DMA dead cycle is inserted after
the DMA write cycle.
Address bus
TEND
HWR
LWR
RD
ø
Bus release
Figure 7-20 Example of Full Address Mode (Cycle Steal) Transfer
DMA
read
DMA
write
Bus release
DMA
read
DMA
write
Bus release
DMA
read
Rev.6.00 Oct.28.2004 page 219 of 1016
Last transfer
cycle
DMA
write
DMA
dead
Bus
release
REJ09B0138-0600H