DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 279

• Manufacturer Part Number: DF2398F20V
• Description: IC H8S/2300 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2398F20V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 87
• Program Memory Size: 256KB (256K 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: 128-QFP
• For Use With: YR0K42378FC000BA - KIT EVAL FOR H8S/2378
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

8.3
8.3.1
When activated, the DTC reads register information that is already stored in memory and transfers data on the basis of that
register information. After the data transfer, it writes updated register information back to memory. Pre-storage of
register information in memory makes it possible to transfer data over any required number of channels. Setting the
CHNE bit to 1 makes it possible to perform a number of transfers with a single activation.
Figure 8-2 shows a flowchart of DTC operation.
The DTC transfer mode can be normal mode, repeat mode, or block transfer mode.
The 24-bit SAR designates the DTC transfer source address and the 24-bit DAR designates the transfer destination
address. After each transfer, SAR and DAR are independently incremented, decremented, or left fixed.
Table 8-2 outlines the functions of the DTC.
Operation
Overview
Read register information
Write register information
Clear an activation flag
Transfer Counter= 0
Read DTC vector
Data transfer
or DISEL= 1
No
No
CHNE=1
Figure 8-2 Flowchart of DTC Operation
Start
End
Yes
Yes
Next transfer
Interrupt exception
Clear DTCER
handling
Rev.6.00 Oct.28.2004 page 249 of 1016
REJ09B0138-0600H