DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 150

• Manufacturer Part Number: DF3048X16V
• Description: MCU 5V 128K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• 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): 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: 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. 7.00 Sep 21, 2005 page 124 of 878
REJ09B0259-0700
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