DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 213

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: 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): 4.5 V ~ 5.5 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: HD64F2148BTE20; HD64F2148BTE20

7.5.2
In repeat mode, one activation source transfers one byte or one word of data. Table 7.3 lists the
register functions in repeat mode. From 1 to 256 transfers can be specified. Once the specified
number of transfers have completed, the initial states of the transfer counter and the address
register that is specified as the repeat area is restored, and transfer is repeated. In repeat mode, the
transfer counter value does not reach H'00, and therefore CPU interrupts cannot be requested when
the DISEL bit in MRB is cleared to 0.
Table 7.3
Name
DTC source address register
DTC destination address register
DTC transfer count register AH
DTC transfer count register AL
DTC transfer count register B
SAR
DAR
or
Repeat Mode
Register Functions in Repeat Mode
Figure 7.6 Memory Mapping in Repeat Mode
Repeat area
SAR
Abbreviation
DAR
CRAH
CRAL
CRB
Transfer
Section 7 Data Transfer Controller (DTC)
Rev. 3.00 Mar 21, 2006 page 157 of 788
Function
Transfer source address
Transfer destination address
Holds number of transfers
Transfer Count
Not used
REJ09B0300-0300
DAR
SAR
or