M306N4FGTFP Renesas Electronics America, M306N4FGTFP Datasheet - Page 254

• Manufacturer Part Number: M306N4FGTFP
• Description: IC M16C MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/6Nr

Specifications of M306N4FGTFP

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 26x10b; 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: -

M16C/6N Group (M16C/6N4)
Rev.2.40
REJ09B0009-0240
19.9 Acceptance Filtering Function and Masking Function
Figure 19.16 Correspondence of Mask Registers to Slots
Figure 19.17 Acceptance Function
These functions serve the users to select and receive a facultative message. Registers CiGMR (i = 0, 1),
CiLMAR, and CiLMBR can perform masking to the standard ID and the extended ID of 29 bits. The CiGMR
register corresponds to slots 0 to 13, the CiLMAR register corresponds to slot 14, and the CiLMBR register
corresponds to slot 15. The masking function becomes valid to 11 bits or 29 bits of a received ID according
to the value in the corresponding slot of the CiIDR register upon acceptance filtering operation. When the
masking function is employed, it is possible to receive a certain range of IDs.
Figure 19.16 shows the Correspondence of Mask Registers to Slots, Figure 19.17 shows the Acceptance
Function.
When using the acceptance function, note the following points.
(1) When one ID is defined in two slots, the one with a smaller number alone is valid.
(2) When it is configured that slots 14 and 15 receive all IDs with Basic CAN mode, slots 14 and 15 receive
all IDs which are not stored into slots 0 to 13.
Apr 14, 2006
received message
ID of the
page 230 of 376
i = 0, 1
ID stored in
the slot
CiLMAR register
CiLMBR register
CiGMR register
The value of the
mask register
Slot #10
Slot #11
Slot #12
Slot #13
Slot #14
Slot #15
Slot #0
Slot #1
Slot #2
Slot #3
Slot #4
Slot #5
Slot #6
Slot #7
Slot #8
Slot #9
Mask Bit Values
0: ID (to which the received message
1: ID (to which the received message
Acceptance judge signal
0: The CAN module ignores the
1: The CAN module stores the
corresponds) match is handled as
"Don’t care".
corresponds) match is checked.
current incoming message.
(Not stored in any slot)
current incoming message in
a slot of which ID matches.
Acceptance Signal
19. CAN Module