XC68HC12A0CPV8 Freescale Semiconductor, XC68HC12A0CPV8 Datasheet - Page 333
XC68HC12A0CPV8
Manufacturer Part Number
XC68HC12A0CPV8
Description
IC, 16BIT MCU, 68HC12, 8MHZ, TQFP-112
Manufacturer
Freescale Semiconductor
Datasheet
1.MC912D60ACFUE8.pdf
(460 pages)
Specifications of XC68HC12A0CPV8
Controller Family/series
68HC12
No. Of I/o's
68
Eeprom Memory Size
1KB
Ram Memory Size
2KB
Cpu Speed
8MHz
No. Of Timers
1
Core Size
16 Bit
Program Memory Size
60KB
Peripherals
ADC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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17.13.4 msCAN12 Bus Timing Register 0 (CBTR0)
MC68HC912D60A — Rev. 3.1
Freescale Semiconductor
CBTR0
$0102
RESET
R
W
NOTE:
SJW1
Bit 7
0
SJW1, SJW0 — Synchronization Jump Width
BRP5 – BRP0 — Baud Rate Prescaler
The CBTR0 register can only be written if the SFTRES bit in CMCR0 is
set.
SJW0
The synchronization jump width defines the maximum number of time
quanta (Tq) clock cycles by which a bit may be shortened, or
lengthened, to achieve resynchronization on data transitions on the
bus (see
These bits determine the time quanta (Tq) clock, which is used to
build up the individual bit timing, according to
6
0
BRP5
0
0
0
0
1
:
:
SJW1
0
0
1
1
Table
BRP5
BRP4
5
0
Table 17-5. Synchronization jump width
0
0
0
0
1
:
:
MSCAN Controller
17-5).
Table 17-6. Baud rate prescaler
BRP3
BRP4
0
0
0
0
1
:
:
4
0
SJW0
0
1
0
1
BRP2
0
0
0
0
1
:
:
BRP3
3
0
Programmer’s Model of Control Registers
BRP1
0
0
1
1
1
:
:
Synchronization jump width
BRP2
2
0
BRP0
2 Tq clock cycles
3 Tq clock cycles
4 Tq clock cycles
1 Tq clock cycle
0
1
0
1
1
:
:
Table
Prescaler value
BRP1
17-6.
1
0
MSCAN Controller
Technical Data
(P)
64
1
2
3
4
:
:
BRP0
Bit 0
0
333
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