HD64F2612FA20 Renesas Electronics America, HD64F2612FA20 Datasheet - Page 448
HD64F2612FA20
Manufacturer Part Number
HD64F2612FA20
Description
IC H8S MCU FLASH 128K 80QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2612FA20
Core Processor
H8S/2600
Core Size
16-Bit
Speed
20MHz
Connectivity
CAN, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
43
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 12x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
80-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HD64F2612FA20
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
Part Number:
HD64F2612FA20J
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
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Section 15 Controller Area Network (HCAN)
15.4
15.4.1
The HCAN can be reset by a hardware reset or software reset.
• Hardware Reset
• Software Reset
15.4.2
After a hardware reset, the following initialization processing should be carried out:
1. Clearing of IRR0 bit in the interrupt register (IRR)
2. Bit rate setting
3. Mailbox transmit/receive settings
4. Mailbox (RAM) initialization
5. Message transmission method setting
These initial settings must be made while the HCAN is in bit configuration mode. Configuration
mode is a state in which the GSR3 bit in GSR is set to 1 by a reset. Configuration mode is exited
by clearing the MCR0 bit in MCR to 0; when the MCR0 bit is cleared to 0, the HCAN
automatically clears the GSR3 bit in GSR. There is a delay between clearing the MCR0 bit and
clearing the GSR3 bit because the HCAN needs time to be internally reset, there is a delay
between clearing of the MCR0 bit and GSR3 bit. After the HCAN exits configuration mode, the
power-up sequence begins, and communication with the CAN bus is possible as soon as 11
consecutive recessive bits have been detected.
Rev. 7.00 Sep. 11, 2009 Page 412 of 566
REJ09B0211-0700
At power-on reset, or in hardware or software standby mode, the HCAN is initialized by
automatically setting the MCR reset request bit (MCR0) in MCR and the reset state bit (GSR3)
in GSR. At the same time, all internal registers, except for message control and message data
registers, are initialized by a hardware reset.
The HCAN can be reset by setting the MCR reset request bit (MCR0) in MCR via software. In
a software reset, the error counters (TEC and REC) are initialized, however other registers are
not. If the MCR0 bit is set while the CAN controller is performing a communication operation
(transmission or reception), the initialization state is not entered until message transfer has
been completed. The reset status bit (GSR3) in GSR is set on completion of initialization.
Hardware and Software Resets
Operation
Initialization after Hardware Reset
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