XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 415

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

23.14.4 MSCAN08 Bus Timing Register 1
MC68HC908AZ60A — Rev 2.0
MOTOROLA
NOTE:
Address:
BRP5–BRP0 — Baud Rate Prescaler
The CBTR0 register can be written only if the SFTRES bit in the
MSCAN08 module control register is set.
SAMP — Sampling
1. In this case PHASE_SEG1 must be at least 2 time quanta.
Reset:
Read:
Write:
BRP5
These bits determine the time quanta (T
up the individual bit timing, according
This bit determines the number of serial bus samples to be taken per
bit time. If set, three samples per bit are taken, the regular one
(sample point) and two preceding samples, using a majority rule. For
higher bit rates, SAMP should be cleared, which means that only one
sample will be taken per bit.
0
0
0
0
1
:
:
1 = Three samples per bit
0 = One sample per bit
$0503
SAMP
Bit 7
0
BRP4
Figure 23-18. Bus Timing Register 1 (CBTR1)
MSCAN Controller (MSCAN08)
0
0
0
0
1
:
:
TSEG22
6
0
Table 23-7. Baud Rate Prescaler
BRP3
0
0
0
0
1
:
:
TSEG21
5
0
BRP2
0
0
0
0
1
:
:
(1)
TSEG20
4
0
BRP1
Programmer’s Model of Control Registers
0
0
1
1
1
:
:
TSEG13
toTable
q
3
0
) clock, which is used to build
BRP0
MSCAN Controller (MSCAN08)
0
1
0
1
1
:
:
TSEG12
23-7.
2
0
Prescaler Value (P)
TSEG11
1
0
Technical Data
64
1
2
3
4
:
:
TSEG10
Bit 0
0
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