HD64F2623FA20J Renesas Electronics America, HD64F2623FA20J Datasheet - Page 595

• Manufacturer Part Number: HD64F2623FA20J
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2623FA20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Initialization (After Hardware Reset Only): These settings should be made while the HCAN is
in bit configuration mode.
IRR0 clearing
The reset interrupt flag (IRR0) is always set after a reset or recovery from software standby
mode. As an HCAN interrupt is initiated immediately when interrupts are enabled, IRR0
should be cleared.
Bit rate settings
Set values relating to the CAN bus communication speed and resynchronization. Refer to Bit
Rate and Bit Timing Settings in 15.3.2, Initialization after Hardware Reset, for details.
Mailbox transmit/receive settings
Mailbox transmit/receive settings should be made in advance. A total of 15 mailboxes can be
set for transmission or reception (mailboxes 1 to 15). To set a mailbox for transmission, clear
the corresponding bit to 0 in the mailbox configuration register (MBCR). Refer to Mailbox
Transmit/Receive Settings in 15.3.2, Initialization after Hardware Reset, for details.
Mailbox initialization
As message control/data registers (MCx[x], MDx[x]) are configured in RAM, their initial
values after powering on are undefined, and so bit initialization is necessary. Write 0s or 1s to
the mailboxes. See Mailbox (Message Control/Data (MCx[x], MDx[x]) Initial Settings in
15.3.2, Initialization after Hardware Reset, for details.
Message transmission method setting
Set the transmission method for mailboxes designated for transmission. The following two
transmission methods can be used. Refer to Setting the Message Transmission Method in
15.3.2, Initialization after Hardware Reset, for details.
a. Transmission order determined by message identifier priority
b. Transmission order determined by mailbox number priority
Section 15 Controller Area Network (HCAN)
Rev. 5.00 Jan 10, 2006 page 569 of 1042
REJ09B0275-0500