DF36037FZJV Renesas Electronics America, DF36037FZJV Datasheet - Page 363

• Manufacturer Part Number: DF36037FZJV
• Description: MCU 3/5V 56K PB-FREE J-TEMP 64-L
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of DF36037FZJV

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SSU
• Peripherals: PWM, WDT
• Number Of I /o: 45
• Program Memory Size: 56KB (56K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• For Use With: R0K436079S000BE - KIT DEV FOR H8/36079 W/COMPILER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

HRXD
HTXD
MBn in TXPR
MBn in TXCR
MBn in TXACK
EMPI in TCIRR1
MBn in ABACK
Arbitration Lost during Message Transmission: If an arbitration loss on the CAN bus occurs,
the TinyCAN halts transmission, and starts message reception. If the DART bit for the
transmission-requested message is cleared to 0, on the completion of reception, the transmission-
requested message is retransmitted. However, if the DART bit is set to 1, it is not transmitted in
frame 2. Figures 15.8 to 15.10 show the timings of the arbitration loss on the CAN bus. Procedure
and operation are as follows.
1. Write data of a transmit message to MCn0, MCn4 to MCn7, and MDn0 to MDn7 [n = 1 to 3]
2. Set the corresponding MBn bit in TXPR to 1 (start condition issuance). Then, the start
3. The internal arbitration for message 1 is determined and the transmit message is transferred to
before clearing the MBn bit in MBCR corresponding to the Mailbox of the transmit message to
0 (initial setting).
condition is generated.
the temporary buffer. After that, even if a transmit request cancellation is issued to the message
being transmitted by the DART or MBn bit in TXCR, message 1 is transmitted continuously
unless the TinyCAN detects an arbitration loss or error on the CAN bus.
Figure 15.7 Internal Arbitration at Transmission Caused by TXCR/TXPR Setting
[2] Set TXPR
Bus idle
Bus idle
[3] Set MBn bit in TXCR immediately after internal arbitration
for message 1 has been determined
Transmission for message 1 cannot be cancelled by TXCR
SOF
SOF
(Transmission settings can be changed by TXPR/TXCR)
Internal arbitration for message 2 can be configurable
Arbitration
Arbitration
Control
Control
Message 1
Message 1
Data
Data
Section 15 Controller Area Network for Tiny (TinyCAN)
CRC
CRC
ACK
ACK
Rev. 4.00 Mar. 15, 2006 Page 329 of 556
EOF
EOF
[5] Internal arbitration for message 2
[4] Clear MBn in TXPR and MBn in TXCR
Intermission
Intermission
[4] Set MBn in TXACK and EMPI in TCIRR1
is determined
Transmission for message 2
cannot be cancelled by TXCR
Internal arbitration for message 3
can be configurable
Message 2
Message 2
SOF
REJ09B0026-0400