HD64F2638F20J Renesas Electronics America, HD64F2638F20J Datasheet - Page 714

• 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 16 Controller Area Network (HCAN)
• Message retransmission
Page 664 of 1458
If transmission of a transmit message is aborted in the following cases, the message is
retransmitted automatically:
a. CAN bus arbitration failure (failure to acquire the bus)
b. Error during transmission (bit error, stuff error, CRC error, frame error, ACK error)
Set TXCR bit corresponding to message
Message transmit wait TXPR setting
End of transmission/transmission
Cancellation possible?
Clear TXCR, TXPR
Message not sent
Interrupt to CPU
to be canceled
Clear TXACK
Clear ABACK
Figure 16-8 Transmit Message Cancellation Flowchart
ABACK = 1
Clear IRR8
cancellation
IMR8 = 1?
IRR8 = 1
No
Yes
No
Yes
Completion of message transmission
Clear TXCR, TXPR
TXACK = 1
IRR8 = 1
: Settings by user
: Processing by hardware
H8S/2639, H8S/2638, H8S/2636,
REJ09B0103-0800 Rev. 8.00
H8S/2630, H8S/2635 Group
May 28, 2010