HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 654

• Manufacturer Part Number: HD64F2638F20J
• Description: IC H8S MCU FLASH 256K 128-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2638F20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 15 I
(Only for the H8S/2638, H8S/2639, and H8S/2630)
• Notes on Start Condition Issuance for Retransmission
Page 604 of 1458
Figure 15-22 shows the timing of start condition issuance for retransmission, and the timing
for subsequently writing data to ICDR, together with the corresponding flowchart.
Figure 15-22 Flowchart and Timing of Start Condition Instruction Issuance for
Write transmit data to ICDR
2
C Bus Interface [Option]
SDA
IRIC
SCL
Clear IRIC in ICSR
[1] IRIC determination
Start condition
Write BBSY = 1,
SCP = 0 (ICSR)
Read SCL pin
Read SCL pin
SCL = High ?
SCL = Low ?
IRIC = 1 ?
issuance?
Yes
Yes
Yes
Yes
ACK
No
No
No
No
[2]
Other processing
Determination
of SCL = low
[1]
[2]
[3]
[4]
[5]
Retransmission
[3] Start condition
instruction issuance
Note: Program so that processing from [3] to [5] is
[1] Wait for end of 1-byte transfer
[2] Determine whether SCL is low
[3] Issue restart condition instruction for retransmission
[4] Determine whether SCL is high
[5] Set transmit data (slave address + R/W)
[4] Determination
executed continuously.
(retransmission)
of SCL = high
Start condition
[5] ICDR write
H8S/2639, H8S/2638, H8S/2636,
REJ09B0103-0800 Rev. 8.00
Bit 7
H8S/2630, H8S/2635 Group
May 28, 2010