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Philips Semiconductors
ARM-based Microcontroller
Rx Data Register A (CANRDA - 0xE00x x028)
This register contains the first 1-4 Data bytes of the current received message. It is read-only in normal operation, but can be
written for testing purposes if the RM bit in CANMOD is 1. See Table 124 for details on specific CAN channel register address.
Table 136: CAN Rx Data Register 1 (CANRDA - 0xE00x x028)
CANRDA Name Function
If the DLC field in CANRFS >= 0001, this contains the first Data byte of the current
7:0
Data 1
received message.
If the DLC field in CANRFS >= 0010, this contains the second Data byte of the
15:8
Data 2
current received message.
If the DLC field in CANRFS >= 0011, this contains the third Data byte of the current
23:16
Data 3
received message.
If the DLC field in CANRFS >= 0100, this contains the fourth Data byte of the current
31:24
Data 4
received message.
Rx Data Register B (CANRDB - 0xE00x x02C)
This register contains the 5th through 8th Data bytes of the current received message. It is read-only in normal operation, but
can be written for testing purposes if the RM bit in CANMOD is 1. See Table 124 for details on specific CAN channel register
address.
Table 137: CAN Rx Data Register B (CANRDB - 0xE00x x02C)
CANRDB Name Function
If the DLC field in CANRFS >= 0101, this contains the 5th Data byte of the current
7:0
Data 5
received message.
If the DLC field in CANRFS >= 0110, this contains the 6th Data byte of the current
15:8
Data 6
received message.
If the DLC field in CANRFS >= 0111, this contains the 7th Data byte of the current
23:16
Data 7
received message.
If the DLC field in CANRFS >= 1000, this contains the 8th Data byte of the current
31:24
Data 8
received message.
CAN Controllers and Acceptance Filter
LPC2119/2129/2292/2294
200
Preliminary User Manual
Reset Value RM Set
0
X
0
X
0
X
0
X
Reset Value RM Set
0
X
0
X
0
X
0
X
May 03, 2004
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