DF61657CN35FTV Renesas Electronics America, DF61657CN35FTV Datasheet - Page 276

• Manufacturer Part Number: DF61657CN35FTV
• Description: IC H8SX/1657 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61657CN35FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 35MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 768KB (768K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: 3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 7 DMA Controller (DMAC)
Rev. 2.00 Jun. 28, 2007 Page 250 of 864
REJ09B0341-0200
Bit
7
6
5
4, 3
Bit Name
DTF1
DTF0
DTA

Initial
Value
0
0
0
All 0
R/W
R/W
R/W
R/W
R
Description
Data Transfer Factor 1 and 0
Select a DMAC activation source. When the on-chip
peripheral module setting is selected, the interrupt
source should be selected by DMRSR. When the
external request setting is selected, the sampling
method should be selected by the DREQS bit.
00: Auto request (cycle stealing)
01: Auto request (burst access)
10: On-chip module interrupt
11: External request
Data Transfer Acknowledge
This bit is valid in DMA transfer by the on-chip module
interrupt source. This bit enables or disables to clear the
source flag selected by DMRSR.
0: To clear the source in DMA transfer is disabled.
1: To clear the source in DMA transfer is enabled.
Reserved
These bits are always read as 0 and cannot be
modified.
Since the on-chip module interrupt source is cleared
in DMA transfer, it does not require an interrupt by the
CPU or DTC transfer.
Since the on-chip module interrupt source is not
cleared in DMA transfer, it should be cleared by the
CPU or DTC transfer.