DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 228

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2238RTF6; HD64F2238RTF6

Section 7 Bus Controller
Figure 7.1 shows a block diagram of the bus controller.
Rev. 6.00 Mar. 18, 2010 Page 166 of 982
REJ09B0054-0600
Chip select signals
External bus control signals
BREQ
BACK
WAIT
Legend:
ABWCR:
ASTCR:
WCRH:
WCRL:
BCRH:
BCRL:
Note: * Supported only by the H8S/2239 Group.
Bus width control register
Access state control register
Wait control register H
Wait control register L
Bus control register H
Bus control register L
Figure 7.1 Block Diagram of Bus Controller
controller
Wait
Area decorder
Bus arbiter
controller
Bus
ABWCR
ASTCR
WCRH
WCRL
BCRH
BCRL
CPU bus request signal
DTC bus request signal
DMAC bus request signal *
CPU bus acknowledge signal
DTC bus acknowledge signal
DMAC bus acknowledge signal *
Internal control
signals
Bus mode signal
Internal
address bus