DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 135

• 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: -

6.1.2
Figure 6-1 shows a block diagram of the bus controller.
Block Diagram
External bus control signals
CS0 to CS7
BREQ
BACK
BREQO
WAIT
External DRAM
signals
Figure 6-1 Block Diagram of Bus Controller
Wait controller
DRAM controller
Bus controller
Area decoder
Bus arbiter
DRAMCR
ABWCR
RTCOR
ASTCR
RTCNT
WCRH
WCRL
BCRH
BCRL
MCR
CPU bus request signal
DTC bus request signal
DMAC bus request signal
CPU bus acknowledge signal
DTC bus acknowledge signal
DMAC bus acknowledge signal
Rev.6.00 Oct.28.2004 page 105 of 1016
Internal control
signals
Bus mode signal
Internal
address bus
REJ09B0138-0600H