DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 521

• 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

16.4.6
If the slave address matches to the address in the first frame (address reception frame) following
the start condition detection when the 8th bit data (R/W) is 1 (read), the TRS bit in ICCR is
automatically set to 1 and the mode changes to slave transmit mode.
Figure 16.24 shows the sample flowchart for the operations in slave transmit mode.
No
Slave Transmit Operation
Write transmit data in ICDR
No
No
Clear ACKE to 0 in ICCR
Set TRS = 0 in ICCR
Read ACKB in ICSR
Slave transmit mode
Clear IRIC in ICCR
Clear IRIC in ICCR
Clear IRIC in ICCR
Read IRIC in ICCR
Clear IRIC in ICCR
Read IRIC in ICCR
(ACKB=0 clear)
of transmission
(ACKB = 1)?
Read ICDR
IRIC = 1?
IRIC = 1?
Figure 16.24 Sample Flowchart for Slave Transmit Mode
End
End
Yes
Yes
Yes
[3], [4] Wait for 1 byte to be transmitted.
[6] Read IRIC in ICCR
[1], [2] If the slave address matches to the address in the first frame
[7] Clear acknowledge bit data
[8] Set slave receive mode.
[9] Dummy read (to release the SCL line).
[10] Wait for stop condition
[3], [5] Set transmit data for the second and subsequent bytes.
[4] Determine end of transfer.
following the start condition detection and the R/W bit is 1
in slave recieve mode, the mode changes to slave transmit mode.
Section 16 I
Rev. 3.00 Mar 21, 2006 page 465 of 788
2
C Bus Interface (IIC) (Optional)
REJ09B0300-0300