DF36054FPJ Renesas Electronics America, DF36054FPJ Datasheet - Page 370

• Manufacturer Part Number: DF36054FPJ
• Description: MCU 3/5V 32K J-TEMP 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of DF36054FPJ

• 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: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F36054FPJ; HD64F36054FPJ

Section 15 Controller Area Network for Tiny (TinyCAN)
15.5.4
Figure 15.14 shows a message reception flowchart. Figure 15.15 shows the set timing for TXPR
and TXCR during reception. A transmit request can be canceled by TXCR at any time during
reception.
Rev. 4.00 Mar. 15, 2006 Page 336 of 556
REJ09B0026-0400
n = 3 (n: Mailbox number)
and Mailboxn ID + LAFM
MBn in RXPR or MBn in
Unread message
overwrite
message
(when MBn in MBIMR
OVRIM in TCIRR1 = 0)
Discard unread message
Overwrite with receive
Set MBn in UMSR to 1
Set OVRI in TCIRR1 to 1
Interrupt occurred (when
= 1)
Receive frame ID
Frame received
RFPR set to 1?
EOF received
NMC = 1?
match?
*
1
Message Reception
Yes
Yes
Yes
No
Unread message
overrun
No
No
(when MBn in MBIMR
Overwrite with unread
Discard receive message
Set MBn in UMSR to 1
Set OVRI in TCIRR1 to 1
Interrupt occurred (when
message
= 1)
OVRIM in TCIRR1 = 0)
TinyCAN is in idle state
*
1
Figure 15.14 Message Reception Flowchart
n = 0?
Yes
Message reception
Write receive message
Set MBn in RXPR or
Set DFRI in TCIRR0 or
Interrupt occurred (when
MBn in RFPR to 1
RFRI in TCIRR0 to 1
(when MBn in MBIMR
DFRIM in TCIMR0 or
RFRIM in TCIMR0 = 0)
= 1)
*
1
No
n = n
1
No
Clear MBn in UMSR to 0
Clear MBn in RXPR to 0
Read MBn in UMSR = 1
Read MBn in RXPR = 1
Read MBn in RXPR = 0
Note: Processing in a shaded box requires setting by software.
DFRI in TCIRR0
OVRI in TCIRR1
Read Mailboxn
MBn in UMSR
TinyCAN data
operation end
frame receive
Read TCIRR
cleared to 0?
set to 1?
set to 1?
*
1
Yes
Yes
Yes
No
No
Clear MBn in RFPR to 0
Read MBn in RFPR = 1
Read MBn in RFPR = 0
TinyCAN remote
RFRI in TCIRR0
Read Mailboxn
MBn in UMSR
frame receive
operation end
cleared to 0?
set to 1?
Yes
Yes
No
No
Other interrupt
processing