mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 353

• Manufacturer Part Number: mc9s12hz256v2
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

12.3.2.13 MSCAN Reserved Register
reserved for factory testing of the MSCAN module and is not available in normal system operation modes.
Read: Always read 0x0000 in normal system operation modes
Write: Unimplemented in normal system operation modes
12.3.2.14 MSCAN Receive Error Counter (CANRXERR)
This register reflects the status of the MSCAN receive error counter.
Read: Only when in sleep mode (SLPRQ = 1 and SLPAK = 1) or initialization mode (INITRQ = 1 and
INITAK = 1)
Write: Unimplemented
Freescale Semiconductor
Reset:
Reset:
W
W
R
R
RXERR7
Writing to this register when in special modes can alter the MSCAN
functionality.
Reading this register when in any other mode other than sleep or
initialization mode may return an incorrect value. For MCUs with dual
CPUs, this may result in a CPU fault condition.
Writing to this register when in special modes can alter the MSCAN
functionality.
0
0
0
7
7
Figure 12-15. MSCAN Receive Error Counter (CANRXERR)
RXERR6
= Unimplemented
= Unimplemented
6
0
0
6
0
Figure 12-14. MSCAN Reserved Register
MC9S12HZ256 Data Sheet, Rev. 2.05
RXERR5
0
0
0
5
5
RXERR4
NOTE
NOTE
Chapter 12 Freescale’s Scalable Controller Area Network (MSCANV2)
4
0
0
4
0
RXERR3
0
0
0
3
3
RXERR2
2
0
0
2
0
RXERR1
0
0
0
1
1
RXERR0
0
0
0
0
0
353