mc9s12c32mpb16 Freescale Semiconductor, Inc, mc9s12c32mpb16 Datasheet - Page 302

• Manufacturer Part Number: mc9s12c32mpb16
• Description: Hcs12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV2)
1. WUPIE and WUPE (see
2. Bus-off state is defined by the CAN standard (see Bosch CAN 2.0A/B protocol specification: for only transmitters. Because the
10.3.2.7
The transmit buffer empty flags each have an associated interrupt enable bit in the CANTIER register.
Read: Anytime
Write: Anytime for TXEx flags when not in initialization mode; write of 1 clears flag, write of 0 is ignored
302
Module Base + 0x0006
mechanism from stop or wait is required.
only possible state change for the transmitter from bus-off to TxOK also forces the receiver to skip its current state to RxOK,
the coding of the RXSTAT[1:0] flags define an additional bus-off state for the receiver (see
Flag Register
OVRIE
RXFIE
Field
1
0
Reset:
W
R
Overrun Interrupt Enable
0 No interrupt request is generated from this event.
1 An overrun event causes an error interrupt request.
Receiver Full Interrupt Enable
0 No interrupt request is generated from this event.
1 A receive buffer full (successful message reception) event causes a receiver interrupt request.
MSCAN Transmitter Flag Register (CANTFLG)
(CANRFLG)”).
The CANTFLG register is held in the reset state when the initialization
mode is active (INITRQ = 1 and INITAK = 1). This register is writable when
not in initialization mode (INITRQ = 0 and INITAK = 0).
0
0
7
Table 10-10. CANRIER Register Field Descriptions (continued)
Section 10.3.2.1, “MSCAN Control Register 0
Figure 10-10. MSCAN Transmitter Flag Register (CANTFLG)
= Unimplemented
6
0
0
MC9S12C-Family / MC9S12GC-Family
0
0
5
Rev 01.23
NOTE
4
0
0
Description
(CANCTL0)”) must both be enabled if the recovery
0
0
3
TXE2
Section 10.3.2.5, “MSCAN Receiver
2
1
Freescale Semiconductor
TXE1
1
1
TXE0
0
1