DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 444

• 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

Section 15 Serial Communication Interface (SCI and IrDA)
15.5.1
Figure 15.11 shows a sample flowchart for multiprocessor serial data transmission. For an ID
transmission cycle, set the MPBT bit in SSR to 1 before transmission. For a data transmission
cycle, clear the MPBT bit in SSR to 0 before transmission. All other SCI operations are the same
as those in asynchronous mode.
Rev. 3.00 Mar 21, 2006 page 388 of 788
REJ09B0300-0300
Multiprocessor Serial Data Transmission
Figure 15.10 Example of Communication Using Multiprocessor Format
Serial
data
Legend:
MPB: Multiprocessor bit
Transmitting
Receiving
station A
(ID = 01)
(Transmission of Data H'AA to Receiving Station A)
station
ID transmission
cycle =
receiving station
specification
H'01
Receiving
station B
(ID = 02)
(MPB = 1)
Serial communication line
Data transmission cycle =
Data transmission to
receiving station specified by ID
Receiving
H'AA
station C
(ID = 03)
(MPB = 0)
Receiving
station D
(ID = 04)