DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 262

• 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: -

Section 8 DMA Controller
Figure 8.18 shows the timing when the DMAC is activated by the falling edge of DREQ in block
transfer mode.
Rev. 3.00 Mar 21, 2006 page 232 of 814
REJ09B0302-0300
Figure 8.18 Timing of DMAC Activation by Falling Edge of DREQ
DREQ
Address
bus
RD
HWR
TEND
,
LWR
T
1
T
2
T
1
DMAC cycle
T
2
T
1
T
2
End of 1 block transfer
T
1
T
2
T
1
Next sampling
Minimum 4 states
CPU cycle
T
2
DREQ in Block Transfer Mode
DREQ
DREQ
T
1
T
2
T
d
DMAC cycle
T
1
T
2