DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 312

• 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 8 DMA Controller (DMAC)
Figure 8.13 shows an example of the setting procedure for normal mode.
Rev. 6.00 Mar. 18, 2010 Page 250 of 982
REJ09B0054-0600
Set number of transfers
Set transfer source and
Normal mode setting
transfer destination
Read DMABCRL
Set DMABCRH
Set DMABCRL
Normal mode
Set DMACR
Figure 8.13 Example of Normal Mode Setting Procedure
addresses
[1]
[2]
[3]
[4]
[5]
[6]
[1]
[2]
[3]
[4]
[5]
[6]
Set each bit in DMABCRH.
Set the transfer source address in MARA, and
the transfer destination address in MARB.
Set the number of transfers in ETCRA.
Set each bit in DMACRA and DMACRB.
Read DTE = 0 and DTME = 0 in DMABCRL.
Set each bit in DMABCRL.
Set the FAE bit to 1 to select full address
mode.
Specify enabling or disabling of internal
interrupt clearing with the DTA bit.
Set the transfer data size with the DTSZ bit.
Specify whether MARA is to be incremented,
decremented, or fixed, with the SAID and
SAIDE bits.
Clear the BLKE bit to 0 to select normal
mode.
Specify whether MARB is to be incremented,
decremented, or fixed, with the DAID and
DAIDE bits.
Select the activation source with bits DTF3 to
DTF0.
Specify enabling or disabling of transfer end
interrupts with the DTIE bit.
Set both the DTME bit and the DTE bit to 1 to
enable transfer.