MC68376BAMFT20 Freescale Semiconductor, MC68376BAMFT20 Datasheet - Page 409

• Manufacturer Part Number: MC68376BAMFT20
• Manufacturer: Freescale Semiconductor

Specifications of MC68376BAMFT20

• Cpu Family: 68K/M683xx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 20MHz
• Interface Type: QSPI/SCI
• Program Memory Type: ROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 7.5KB
• # I/os (max): 18
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• On-chip Adc: 16-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 160
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

PRESDIV — Prescaler Divide Register
CANCTRL2 — Control Register 2
D.10.6 Prescaler Divide Register
PRESDIV — Prescaler Divide Factor
D.10.7 Control Register 2
RJW[1:0] — Resynchronization Jump Width
MC68336/376
USER’S MANUAL
15
15
0
0
RESET:
RESET:
where
PRESDIV determines the ratio between the system clock frequency and the serial
clock (S-clock).
The S-clock is determined by the following calculation:
The reset value of PRESDIV is $00, which forces the S-clock to default to the same
frequency as the system clock.
The valid programmed values are 0 through 255.
The RJW field defines the maximum number of time quanta a bit time may be changed
during resynchronization.
The valid programmed values are 0 through 3.
The resynchronization jump width is calculated as follows:
14
14
0
0
13
13
0
0
Propagation Segment Time
12
12
Resynchronization Jump Width
0
0
PRESDIV
PRESDIV
1 Time Quantum
11
11
0
0
10
10
0
0
REGISTER SUMMARY
9
0
9
0
S-clock
=
8
0
8
0
1 Serial Clock (S-clock) Period
=
=
----------------------------------- -
PRESDIV
7
0
7
0
RJW[1:0]
PROPSEG
f sys
=
6
0
6
0
RJW
+
5
0
5
0
1
+
PSEG1[2:0]
+
1
1
CANCTRL2
4
0
4
0
Time Quanta
Time Quanta
3
1
3
1
2
0
2
0
PSEG2[2:0]
$YFF088
$YFF089
MOTOROLA
1
0
1
0
D-91
0
0
0
0