DF2268FA13V Renesas Electronics America, DF2268FA13V Datasheet - Page 490

• Manufacturer Part Number: DF2268FA13V
• Description: IC H8S/2268 MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2268FA13V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 13MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 14 I
12. Notes on TRS Bit Setting in Slave Mode
Rev. 5.00 Sep. 01, 2009 Page 438 of 656
REJ09B0071-0500
SDA
SCL
TRS
From the detection of the rising edge of the 9th clock cycle or of a stop condition to when the
rising edge of the next SCL pin signal is detected (the period indicated as (a) in figure 14.26)
in the slave mode of the I
effective immediately.
However, at other times (indicated as (b) in figure 14.26) the value set in the TRS bit is put on
hold until the next rising edge of the 9th clock cycle or stop condition is detected, rather than
taking effect immediately.
This results in the actual internal value of the TRS bit remaining 1 (transmit mode) and no
acknowledge bit being sent at the 9th clock cycle address receive completion in the case of an
address receive operation following a restart condition input with no stop condition
intervening.
When receiving an address in the slave mode, clear the TRS bit to 0 during the period
indicated as (a) in figure 14.26.
To cancel the holding of the SCL bit low by the wait function in the slave mode, clear the TRS
bit to 0 and then perform a dummy read of the ICDR register.
Data transmission
8
2
C Bus Interface (IIC) (Supported as an Option by H8S/2264 Group)
Detection of 9th clock
cycle rising edge
9
TRS bit set
(a)
Figure 14.26 TRS Bit Setting Timing in Slave Mode
ICDR dummy read
Restart condition
2
C bus interface, the value set in the TRS bit in the ICCR register is
1
TRS bit setting hold time
2
Address reception
3
(b)
4
5
6
7
Detection of 9th clock
cycle rising edge
8
A
9