DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 537

• Manufacturer Part Number: DF2148BTE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148BTE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IrDA, SCI, X-Bus
• Peripherals: 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): 4.5 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: HD64F2148BTE20; HD64F2148BTE20

Note: This restriction on usage can be canceled by setting the FNC1 and FNC0 bits to 1 in
IRIC
Figure 16.31 Flowchart for Start Condition Issuance Instruction for Retransmission and
SDA
SCL
ICXR.
[1] IRIC determination
Write transmit data to ICDR
Yes
Yes
Clear IRIC in ICSR
SCP = 0 (ICSR)
ACK
Set BBSY = 1,
Read SCL pin
Start condition
SCL = Low?
IRIC = 1?
issuance?
IRIC = 1?
[2] Determination of SCL = Low
9
Yes
Yes
No
No
No
No
[3] (Retransmission) Start condition instruction issuance
Other processing
[1]
[2]
[3]
[4]
[5]
Timing
Start condition generation
(retransmission)
[4] IRIC determination
Section 16 I
[1] Wait for end of 1-byte transfer
[2] Determine whether SCL is low
[3] Issue start condition instruction for retransmission
[4] Determine whether start condition is generated or not
[5] Set transmit data (slave address + R/W)
Note:* Program so that processing from [3] to [5]
Rev. 3.00 Mar 21, 2006 page 481 of 788
[5] ICDR write (transmit data)
is executed continuously.
2
C Bus Interface (IIC) (Optional)
bit7
REJ09B0300-0300