DF2148RTE20IV Renesas Electronics America, DF2148RTE20IV Datasheet - Page 559

• 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: -

IRTR flag setting is performed when the TDRE or RDRF flag is set to 1. IRTR is cleared by
reading IRTR after it has been set to 1, then writing 0 in IRTR. IRTR is also cleared automatically
when the IRIC flag is cleared to 0.
Bit 4—Second Slave Address Recognition Flag (AASX): In I
this flag is set to 1 if the first frame following a start condition matches bits SVAX6 to SVAX0 in
SARX.
AASX is cleared by reading AASX after it has been set to 1, then writing 0 in AASX. AASX is
also cleared automatically when a start condition is detected.
Bit 5
IRTR
0
1
Bit 4
AASX
0
1
Description
Waiting for transfer, or transfer in progress
[Clearing conditions]
1. When 0 is written in IRTR after reading IRTR = 1
2. When the IRIC flag is cleared to 0
Continuous transfer state
[Setting conditions]
Description
Second slave address not recognized
[Clearing conditions]
1. When 0 is written in AASX after reading AASX = 1
2. When a start condition is detected
3. In master mode
Second slave address recognized
[Setting condition]
When the second slave address is detected in slave receive mode while FSX = 0
In I
When the TDRE or RDRF flag is set to 1 when AASX = 1
In other modes
When the TDRE or RDRF flag is set to 1
2
C bus interface slave mode
Rev. 4.00 Sep 27, 2006 page 513 of 1130
Section 16 I
2
C bus format slave receive mode,
2
C Bus Interface [Option]
REJ09B0327-0400
(Initial value)
(Initial value)