DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 564

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 17 I
Rev.2.00 May. 28, 2009 Page 524 of 732
REJ09B0059-0200
No
2
C Bus Interface 3 (IIC3)
No
No
Write transmit data to ICDRT
Write transmit data to ICDRT
No
No
No
Read ACKBR in ICIER
Set MST = 0 and TRS
Read BBSY in ICCRB
Set MST = 1 and TRS
Read TDRE in ICSR
Read TEND in ICSR
Clear TEND in ICSR
Clear STOP in ICSR
Read STOP in ICSR
Clear TDRE in ICSR
Read TEND in ICSR
Write transmit data
Write BBSY = 1
Write BBSY = 0
= 0 in ICCRA
Figure 17.14 Sample Flowchart for Master Transmit Mode
ACKBR = 0 ?
= 1 in ICCRA
and SCP = 0
and SCP = 0
BBSY = 0 ?
TEND = 1 ?
TDRE = 1 ?
TEND = 1 ?
STOP = 1 ?
Last byte?
to ICDRT
Transmit
Initialize
mode?
Start
End
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
Master receive mode
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10] Wait for the completion of transmission for the last byte.
[11] Clear TEND flag.
[12] Clear STOP flag.
[13] Stop condition issuance.
[14] Wait for the generation of the stop condition.
[15] Set slave receive mode. Clear TDRE.
Test the status of the SCL and SDA lines.
Set master transmit mode.
Start condition issuance.
Set transmit data for the first byte (slave address + R/W).
Wait for 1 byte to be transmitted.
Test the acknowledge bit, transferred from the specified slave device.
Set transmit data for the second and subsequent data (except for the last byte).
Wait for ICDRT empty.
Set transmit data for the last byte.