DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 583

• 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: -

Figure 16.14 Flowchart for Master Transmit Mode (Example)
No
No
No
No
No
Write transmit data in ICDR
Write transmit data in ICDR
and SCP = 0 in ICCR
and SCP = 0 in ICCR
Read BBSY in ICCR
Read ACKB in ICSR
Read ACKB in ICSR
End of transmission
Read IRIC in ICCR
Read IRIC in ICCR
Read IRIC in ICCR
Clear IRIC in ICCR
Clear IRIC in ICCR
Clear IRIC in ICCR
Set MST = 1 and
TRS = 1 in ICCR
Transmit mode?
Write BBSY = 1
Write BBSY = 0
or ACKB = 1?
BBSY = 0?
ACKB = 0?
Yes
IRIC = 1?
IRIC = 1?
IRIC = 1?
Initialize
Start
End
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Master receive mode
[1] Initialize
[2] Test the status of the SCL and SDA lines.
[3] Select master transmit mode.
[4] Start condition issuance
[5] Wait for a start condition generation
[6] Set transmit data for the first byte (slave
[7] Wait for 1 byte to be transmitted.
[8] Test the acknowledge bit, transferred from
[9] Set transmit data for the second and
[10] Wait for 1 byte to be transmitted.
[11] Test for end of transfer
[12] Stop condition issuance
address + R/W).
(After writing ICDR, clear IRIC
immediately)
slave device.
subsequent bytes.
(After writing ICDR, clear IRIC
immediately)
Rev. 4.00 Sep 27, 2006 page 537 of 1130
Section 16 I
2
C Bus Interface [Option]
REJ09B0327-0400