CAN 2.0B Controller Module
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
16-33
16.7.11 Receive Buffer 15 Mask Registers (RX15MSKHI, RX15MSKLO)
The receive buffer 15 mask registers have the same structure as the receive global mask registers and are
used to mask buffer 15.
16.7.12 Error and Status Register (ESTAT)
This register reflects various error conditions, general status, and has the enable bits for three of the
TouCAN interrupt sources. The reported error conditions are those which have occurred since the last time
the register was read. A read clears these bits to zero.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Field MID
28
MID
27
MID
26
MID
25
MID
24
MID
23
MID
22
MID
21
MID
20
MID
19
MID
18
0
1
MID
17
MID
16
MID
15
SRESET
1
1
1
1
1
1
1
1
1
1
1
0
1
1
1
1
Addr
0x30 7098 (Rx15MSKHI_A); 0x30 7498 (Rx15MSKHI_B); 0x30 7898 (Rx14MSKHI_C);
0x30 709A (Rx14MSKLO_A); 0x30 749A (Rx14MSKLO_B); 0x30 789A (Rx14MSKLO_C)
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
LSB
31
Field MID
14
MID
13
MID
12
MID
11
MID
10
MID
9
MID
8
MID
7
MID
6
MID
5
MID
4
MID
3
MID
2
MID
1
MID
0
0
SRESET
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
Figure 16-18. Receive Buffer 15 Mask Registers: High (RX15MSKHI), Low (RX15MSKLO)
Table 16-22. RX15MSKHI, RX15MSKLO Field Descriptions
Bits
Name
Description
0:31
MID
x
The receive buffer 14 mask registers use 4 bytes.
Base ID mask bits MID[28:18] are used to mask standard or extended format frames.
Extended ID bits MID[17:0] are used to mask only extended format frames.
The RTR/SRR bit of a received frame is never compared to the corresponding bit in the
message buffer ID field. However, remote request frames (RTR = 1) once received, are never
stored into the message buffers. RTR mask bit locations in the mask registers (bits 11 and
31) are always zero, regardless of any write to these bits.
The IDE bit of a received frame is always compared to determine if the message contains a
standard or extended identifier. Its location in the mask registers (bit 12) is always one,
regardless of any write to this bit.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
BIT
ERR
ACK
ERR
CRC
ERR
FORM
ERR
STUFF
ERR
TX
WARN
RX
WARN
IDLE TX/RX
FCS
—
BOFF
INT
ERR
INT
WAKE
INT
SRESET
0000_0000_0000_0000
Addr
0x30 70A0 (ESTAT_A); 0x30 74A0 (ESTAT_B); 0x30 78A0 (ESTAT_C)
Figure 16-19. Error and Status Register (ESTAT)
Summary of Contents for MPC561
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Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
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Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...