DF3048BVX25V Renesas Electronics America, DF3048BVX25V Datasheet - Page 152

• Manufacturer Part Number: DF3048BVX25V
• Description: MCU 3/5V 128K PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048BVX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 6 Bus Controller
6.1.2
Figure 6.1 shows a block diagram of the bus controller.
Rev. 3.00 Sep 27, 2006 page 124 of 872
REJ09B0325-0300
CPU bus request signal
DMAC bus request signal
Refresh controller bus request signal
CPU bus acknowledge signal
DMAC bus acknowledge signal
Refresh controller bus acknowledge signal
Legend:
ABWCR:
ASTCR:
WCER:
WCR:
BRCR:
CSCR:
Internal
address bus
WAIT
Block Diagram
Bus width control register
Access state control register
Wait state controller enable register
Wait control register
Bus release control register
Chip select control register
Internal signals
decoder
Area
Figure 6.1 Block Diagram of Bus Controller
Chip select
control signals
CS to CS
7
0
Bus control
Bus arbiter
Wait-state
controller
circuit
ABWCR
ASTCR
WCER
CSCR
BRCR
WCR
BACK
BREQ
Bus mode control signal
Bus size control signal
Access state control signal
Wait request signal
Internal signals