D12674RVFQ33D Renesas Electronics America, D12674RVFQ33D Datasheet - Page 438

• Manufacturer Part Number: D12674RVFQ33D
• Description: MCU 3V 0K I-TEMP 144-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of D12674RVFQ33D

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: IrDA, SCI
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 103
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Other names: HD6412674RVFQ33D; HD6412674RVFQ33D

Section 8 EXDMA Controller
External Request/Cycle Steal Mode/Block Transfer Mode: In block transfer mode, transfer of
one block is performed continuously in the same way as in burst mode. The timing of the start of
the next block transfer is the same as in normal transfer mode.
If a transfer request is generated for another channel, an EXDMA cycle for the other channel is
generated before the next block transfer.
The EDREQ pin sensing timing is different for low level sensing and falling edge sensing. The
same applies to transfer request acceptance and transfer start timing.
Figures 8.39 to 8.44 show operation timing examples for various conditions.
Rev. 3.00 Mar 17, 2006 page 386 of 926
REJ09B0283-0300
Original
channel
EDREQ
Original
channel
EDRAK
Bus cycle
Other
channel
EDREQ
Other
channel
EDRAK
pin
Figure 8.38 External Request/Cycle Steal Mode/Normal Transfer Mode Contention
EXDMA transfer
cycle
with Another Channel/Dual Address Mode/Low Level Sensing
Bus release
3 cycles
EXDMA
read
EXDMA
write
1 cycle
Bus
release
Other channel
transfer cycle
1 cycle
Bus
release
EXDMA
read
EXDMA
write