sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 341

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

In cases of more than one buffer having the same lowest priority, the message buffer with the lower index
number wins.
1. Read: Anytime when TXEx flag is set (see
9.3.3.5
If the TIME bit is enabled, the MSCAN will write a time stamp to the respective registers in the active
transmit or receive buffer right after the EOF of a valid message on the CAN bus (see
“MSCAN Control Register 0
stamp after the respective transmit buffer has been flagged empty.
The timer value, which is used for stamping, is taken from a free running internal CAN bit clock. A timer
overrun is not indicated by the MSCAN. The timer is reset (all bits set to 0) during initialization mode. The
CPU can only read the time stamp registers.
1. Read: Anytime when TXEx flag is set (see
Freescale Semiconductor
Module Base + 0x00XD
Module Base + 0x00XE
corresponding transmit buffer is selected in CANTBSEL (see
(CANTBSEL)”)
Write: Anytime when TXEx flag is set (see
corresponding transmit buffer is selected in CANTBSEL (see
(CANTBSEL)”)
corresponding transmit buffer is selected in CANTBSEL (see
(CANTBSEL)”)
Write: Unimplemented
•
Reset:
Reset:
The transmission buffer with the lowest local priority field wins the prioritization.
W
W
R
R
Time Stamp Register (TSRH–TSRL)
TSR15
PRIO7
0
7
7
x
Figure 9-37. Time Stamp Register — High Byte (TSRH)
TSR14
PRIO6
Figure 9-36. Transmit Buffer Priority Register (TBPR)
6
0
6
x
(CANCTL0)”). In case of a transmission, the CPU can only read the time
MC9S12HY/HA-Family Reference Manual Rev. 1.04
Section 9.3.2.7, “MSCAN Transmitter Flag Register
Section 9.3.2.7, “MSCAN Transmitter Flag Register
Section 9.3.2.7, “MSCAN Transmitter Flag Register
TSR13
PRIO5
0
5
5
x
TSR12
PRIO4
4
0
4
x
Section 9.3.2.11, “MSCAN Transmit Buffer Selection Register
Section 9.3.2.11, “MSCAN Transmit Buffer Selection Register
Section 9.3.2.11, “MSCAN Transmit Buffer Selection Register
Freescale’s Scalable Controller Area Network (S12MSCANV3)
TSR11
PRIO3
0
x
3
3
TSR10
PRIO2
2
0
2
x
(CANTFLG)”) and the
(CANTFLG)”) and the
(CANTFLG)”) and the
Access: User read/write
Access: User read/write
PRIO1
TSR9
Section 9.3.2.1,
0
x
1
1
PRIO0
TSR8
0
0
0
x
341
(1)
(1)