Acceptance Mask Select Register (Amsr); Table 23-7 Selection Of Acceptance Mask - Fujitsu MB90420/5 (A) Series Hardware Manual

23.6.18 Acceptance Mask Select Register (AMSR)

This register selects masks (acceptance mask) for comparison between the receive message ID and the
message buffer (x) ID.
n Acceptance Mask Select Register (AMSR)
BYTE0
Address: 003C10 (CAN0)
H
Address: 003D10 (CAN1)
H
Read/write →
Initial value →
BYTE1
Address: 003C11 (CAN0)
H
Address: 003D11 (CAN1)
H
Read/write →
Initial value →
BYTE2
Address: 003C12 (CAN0)
H
Address: 003D12 (CAN1)
H
Read/write →
Initial value →
BYTE3
Address: 003C13 (CAN0)
H
Address: 003D13 (CAN1)
H
Read/write →
Initial value →
Note: This register should be set when the message buffer (x) is invalid (BVALx of the message buffer
valid register (BVALR) = 0). Setting when the buffer is valid (BVALx = 1) may cause unnecessary
received messages to be stored.
CAN CONTROLLER
7 6
AMS3.1 AMS3.0
(R/W) (R/W)
(X) (X)
15 14
AMS7.1 AMS7.0
(R/W) (R/W)
(X) (X)
7 6
AMS11.1 AMS11.0
(R/W) (R/W)
(X) (X)
15 14
AMS15.1 AMS15.0
(R/W) (R/W)
(X) (X)

Table 23-7 Selection of Acceptance Mask

AMSx.1 AMSx.0
0 0
0 1
1 0
1 1
5 4 3
AMS2.1 AMS2.0 AMS1.1
(R/W) (R/W) (R/W)
(X) (X) (X)
13 12 11
AMS6.1 AMS6.0 AMS5.1
(R/W) (R/W) (R/W)
(X) (X) (X)
5 4 3
AMS9.1
AMS10.1 AMS10.0
(R/W) (R/W) (R/W)
(X) (X) (X)
13 12 11
AMS14.1 AMS14.0 AMS13.1
(R/W) (R/W) (R/W)
(X) (X) (X)
Acceptance Mask
Full-bit comparison
Full-bit mask
Acceptance mask register 0 (AMR0)
Acceptance mask register 1 (AMR1)
23-25
2 1 0
AMS1.0 AMS0.1 AMS0.0
(R/W) (R/W) (R/W)
(X) (X) (X)
10 9 8
AMS5.0 AMS4.1 AMS4.0
(R/W) (R/W) (R/W)
(X) (X) (X)
2 1 0
AMS9.0 AMS8.1 AMS8.0
(R/W) (R/W) (R/W)
(X) (X) (X)
10 9 8
AMS13.0 AMS12.1 AMS12.0
(R/W) (R/W) (R/W)
(X) (X) (X)
← Bit No.
← Bit No.
← Bit No.
← Bit No.