DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 261

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K 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: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Figure 8.17 shows the timing when the DMAC is activated by level-sensitive low DREQ input in
normal mode.
DREQ
Address
bus
RD
HWR LWR
Figure 8.17 Timing of DMAC Activation by Low DREQ
,
T
2
T
CPU cycle
Minimum 4 states
1
T
2
T
1
T
2
T
d
T
1
DMAC cycle
T
2
Rev. 3.00 Mar 21, 2006 page 231 of 814
T
1
DREQ Level in Normal Mode
DREQ
DREQ
Next sampling point
T
2
T
1
Section 8 DMA Controller
T
2
CPU cycle
T
REJ09B0302-0300
1
T
2
T
1