DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 226

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• 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: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

Section 7 Data Transfer Controller (DTC)
7.1.2
Figure 7.1 shows a block diagram of the DTC.
The DTC’s register information is stored in the on-chip RAM * . A 32-bit bus connects the DTC to
the on-chip RAM (1 kbyte), enabling 32-bit/1-state reading and writing of the DTC register
information.
Note: * When the DTC is used, the RAME bit in SYSCR must be set to 1.
Rev. 4.00 Sep 27, 2006 page 180 of 1130
REJ09B0327-0400
Interrupt
request
Legend:
MRA, MRB: DTC mode registers A and B
CRA, CRB: DTC transfer count registers A and B
SAR:
DAR:
DTCERA to DTCERE: DTC enable registers A to E
DTVECR:
Block Diagram
Interrupt controller
CPU interrupt
request
DTC source address register
DTC destination address register
DTC vector register
Figure 7.1 Block Diagram of DTC
DTC
Internal address bus
Internal data bus
On-chip
RAM