HD64F2623FA20J Renesas Electronics America, HD64F2623FA20J Datasheet - Page 611

• 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: -

15.4
A bus transceiver IC is necessary to connect the H8S/2626 Group or H8S/2623 Group chip to a
CAN bus. A Philips PCA82C250 transceiver IC, or compatible device, is recommended. Figure
15.14 shows a sample connection diagram.
15.5
1. Reset
2. HCAN sleep mode
The HCAN is reset by a reset, and in hardware standby mode and software standby mode. All
the registers are initialized in a reset, but mailboxes (message control (MCx[x])/message data
(MDx[x]) are not. However, after powering on, mailboxes (message control
(MCx[x])/message data (MDx[x]) are initialized, and their values are undefined. Therefore,
mailbox initialization must always be carried out after a reset or a transition to hardware
standby mode or software standby mode. Also, the reset interrupt flag (IRR0) is always set
after reset input or recovery from software standby mode. As this bit cannot be masked in the
interrupt mask register (IMR), if HCAN interrupts are set as enabled by the interrupt controller
without this flag having been cleared, an HCAN interrupt will be initiated immediately. IRR0
must therefore be cleared during initialization.
The bus operation interrupt flag (IRR12) in the interrupt register (IRR) is set by bus operation
in HCAN sleep mode. Therefore, this flag is not used by the HCAN to indicate sleep mode
H8S/2626 Group or
H8S/2623 Group
CAN Bus Interface
Usage Notes
HRxD
HTxD
Figure 15.14 High-Speed Interface Using PCA82C250
No connection
PCA82C250
RS
RxD
TxD
Vref
CANH
CANL
GND
Vcc
Vcc
Section 15 Controller Area Network (HCAN)
Rev. 5.00 Jan 10, 2006 page 585 of 1042
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REJ09B0275-0500
CAN bus