DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 237

• Manufacturer Part Number: DF2148RTE20IV
• Description: MCU 5V 128K I-TEMP,PB-FREE, 100-
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148RTE20IV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Table 7.2
7.3.2
The DTC operates when activated by an interrupt or by a write to DTVECR by software (software
activation). An interrupt request can be directed to the CPU or DTC, as designated by the
corresponding DTCER bit. The interrupt request is directed to the DTC when the corresponding
bit is set to 1, and to the CPU when the bit is cleared to 0.
At the end of one data transfer (or the last of the consecutive transfers in the case of chain transfer)
the interrupt source or the corresponding DTCER bit is cleared. Table 7.3 shows activation
sources and DTCER clearing.
Transfer Mode
Normal mode
Repeat mode
Block transfer mode
One transfer request transfers one
byte or one word
Memory addresses are incremented
or decremented by 1 or 2
Up to 65,536 transfers possible
One transfer request transfers one
byte or one word
Memory addresses are incremented
or decremented by 1 or 2
After the specified number of transfers
(1 to 256), the initial state resumes and
operation continues
One transfer request transfers a block
of the specified size
Block size is from 1 to 256 bytes or
words
Up to 65,536 transfers possible
A block area can be designated at either
the source or destination
Activation Sources
DTC Functions
Activation Source
IRQ
FRT ICI, OCI
8-bit timer CMI
Host interface IBF
SCI TXI or RXI
A/D converter ADI
IIC IICI
Software
Rev. 4.00 Sep 27, 2006 page 191 of 1130
Section 7 Data Transfer Controller (DTC)
Transfer
Source
24 bits
Address Registers
REJ09B0327-0400
Transfer
Destination
24 bits