DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 562

• 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
3. Read ICDRR every time RDRF is set. If the 8th receive clock pulse falls while RDRF is 1,
4. The last-byte data is read by reading ICDRR.
Rev.2.00 May. 28, 2009 Page 522 of 732
REJ09B0059-0200
(master output)
(master output)
(master output)
(master output)
(slave output)
(slave output)
SCL is fixed low until RDRF is cleared. The change of the acknowledge before clearing
RDRF, to be returned to the master device, is reflected to the next transfer frame.
(slave output)
(slave output)
processing
processing
ICDRR
ICDRS
RDRF
ICDRS
ICDRR
RDRF
SCL
SDA
SDA
SCL
User
User
SCL
SDA
SDA
SCL
2
C Bus Interface 3 (IIC3)
Figure 17.11 Operation Timing in Slave Receive Mode (1)
Figure 17.12 Operation Timing in Slave Receive Mode (2)
[2] Read ICDRR (dummy read)
A
9
A
9
Bit 7
1
Bit 7
Bit 6
Data 1
1
Data 1
2
Bit 6
Bit 5
2
3
Bit 5
Bit 4
3
4
Bit 4
[3] Set ACKBT
Bit 3
4
5
Bit 3
Bit 2
5
6
Bit 2
Bit 1
6
7
[3] Read ICDRR
Bit 1
[2] Read ICDRR
Bit 0
7
8
A/
Bit 0
8
A
9
[4] Read ICDRR
9
Data 1
Bit 7
Data 1
1
Data 2
Data 2