DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 579

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• 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: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

16.3.6
The interrupt request flag (IRIC) is set at different times depending on the WAIT bit in ICMR, the
FS bit in SAR, and the FSX bit in SARX. If the TDRE or RDRF internal flag is set to 1, SCL is
automatically held low after one frame has been transferred; this timing is synchronized with the
internal clock. Figure 16.12 shows the IRIC set timing and SCL control.
(a) When WAIT = 0, and FS = 0 or FSX = 0 (I
(b) When WAIT = 1, and FS = 0 or FSX = 0 (I
(c) When FS = 1 and FSX = 1 (synchronous serial format)
IRIC Setting Timing and SCL Control
SCL
SDA
IRIC
User processing
SCL
SDA
IRIC
User processing
SCL
SDA
IRIC
User processing
Figure 16.12 IRIC Setting Timing and SCL Control
8
8
7
7
7
7
8
8
8
8
Clear
IRIC
Clear IRIC
Clear IRIC
9
A
A
9
2
2
C bus format, no wait)
C bus format, wait inserted)
Clear
IRIC
Rev. 4.00 Sep 27, 2006 page 533 of 1130
Write to ICDR (transmit)
or read ICDR (receive)
Section 16 I
Write to ICDR (transmit)
or read ICDR (receive)
Write to ICDR (transmit)
or read ICDR (receive)
2
C Bus Interface [Option]
1
1
1
1
1
1
REJ09B0327-0400