M30845FJGP#U3 Renesas Electronics America, M30845FJGP#U3 Datasheet - Page 381

• Manufacturer Part Number: M30845FJGP#U3
• Description: IC M32C MCU FLASH 512K 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M30845FJGP#U3

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 34x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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23.1.20.7 RECREQ Bit
23.1.20.8 TRMREQ Bit
4
The RECREQ bit selects transmit/receive mode shown in Table 23.4. Set the RECREQ bit to "1"
(receive requested) when data frame or remote frame is received. Set the RECREQ bit to "0" (no
receive requested) when data frame or remote frame is transmitted.
When a data frame is automatically transmitted after a remote frame is received, the RECREQ bit
remains set to "1". Set the RECREQ bit to "0" to transmit a remote frame. After a remote frame is
transmitted, a data frame is automatically received while the RECREQ bit remains set to "0".
When setting the TRMREQ bit to "1" (transmit requested), do not set the RECREQ bit to "1" (receive
requested).
The TRMREQ bit selects transmit/receive mode shown in Table 23.4. Set the TRMREQ bit to "1"
(transmit requested) when data frame or remote frame is transmitted.
Set the TRMREQ bit to "0" (no request to transmit the frame) when data frame or remote frame is
received.
When the data frame is automatically received after the remote frame is transmitted, the TRMREQ bit
remains set to "1". Set the TRMREQ bit to "0" to receive the remote frame. After the remote frame is
received, data frame is automatically transmitted while the TRMREQ bit remains set to "0".
If the RECREQ bit is set to "1" (request to receive the frame), do not set the TRMREQ bit to "1" (
request to transmit the frame).
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NOTES:
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2. In single-shot mode, the C0MCTLj register is set to "00
1. If some message slots are requested to transmit the data frame or remote frame, the message
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, 7
0
slot, having the smallest slot number starts transmitting.
to the arbitration lost or transmission error.
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" when data transmission is failed, due
23. CAN Module