MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 613

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TIMER — Free Running Timer Register
RXGMSKHI — Receive Global Mask Register High
RXGMSKLO — Receive Global Mask Register Low
16.7.8 Free Running Timer
16.7.9 Receive Global Mask Registers
MPC555
USER’S MANUAL
MID28 MID27 MID26 MID25 MID24 MID23 MID22 MID21 MID20 MID19 MID18
MID14 MID13 MID12 MID11 MID10 MID9
MSB
MSB
Bit(s)
16
0
0
0
1
1
0:15
RESET:
RESET:
RESET:
17
1
0
1
1
1
/
MPC556
TIMER
Name
18
2
0
2
1
1
19
3
0
3
1
1
The free running timer counter can be read and written by the CPU. The timer starts from
zero after reset, counts linearly to 0xFFFF, and wraps around.
The timer is clocked by the TouCAN bit-clock. During a message, it increments by one for
each bit that is received or transmitted. When there is no message on the bus, it increments
at the nominal bit rate.
The timer value is captured at the beginning of the identifier field of any frame on the CAN
bus. The captured value is written into the “time stamp” entry in a message buffer after a suc-
cessful reception or transmission of a message.
20
4
0
4
1
1
Table 16-19 TIMER Bit Descriptions
CAN 2.0B CONTROLLER MODULE
21
5
0
5
1
1
MID8
Rev. 15 October 2000
22
6
0
6
1
1
MID7
23
7
0
7
1
1
TIMER
MID6
24
8
0
8
1
1
Description
MID5
25
9
0
9
1
1
MID4
10
10
26
0
1
1
MID3
11
11
27
0
0
0
1
0x30 7090, 0x30 7490
0x30 7092, 0x30 7492
MID2
12
12
28
0
1
1
1
MID17 MID16 MID15
MID1
13
13
29
0
1
1
0x30 708A
0x30 748A
MOTOROLA
MID0
14
14
30
0
1
1
16-31
LSB
LSB
15
15
31
0
1
0
0