mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 316

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale’s Scalable Controller Area Network (S12MSCANV3)
1. Read: Always reads zero in normal system operation modes
11.3.2.14 MSCAN Miscellaneous Register (CANMISC)
This register provides additional features.
1. Read: Anytime
11.3.2.15 MSCAN Receive Error Counter (CANRXERR)
This register reflects the status of the MSCAN receive error counter.
316
Module Base + 0x000C to Module Base + 0x000D
Module Base + 0x000D
BOHOLD
Write: Unimplemented in normal system operation modes
Write: Anytime; write of ‘1’ clears flag; write of ‘0’ ignored
Field
0
Reset:
Reset:
W
W
R
R
Bus-off State Hold Until User Request — If BORM is set in MSCAN Control Register 1
indicates whether the module has entered the bus-off state. Clearing this bit requests the recovery from bus-off.
Refer to
0 Module is not bus-off or recovery has been requested by user in bus-off state
1 Module is bus-off and holds this state until user request
Writing to this register when in special system operating modes can alter the
MSCAN functionality.
0
0
0
0
7
7
Section 11.5.2, “Bus-Off
Figure 11-17. MSCAN Miscellaneous Register (CANMISC)
= Unimplemented
= Unimplemented
Table 11-21. CANMISC Register Field Descriptions
6
0
0
6
0
0
Figure 11-16. MSCAN Reserved Register
S12XS Family Reference Manual, Rev. 1.10
0
0
0
0
Recovery,” for details.
5
5
NOTE
4
0
0
4
0
0
Description
0
0
0
0
3
3
2
0
0
2
0
0
Access: User read/write
Access: User read/write
Freescale Semiconductor
(CANCTL1),
0
0
0
0
1
1
BOHOLD
this bit
0
0
0
0
0
(1)
(1)