MC908GZ32VFAER Freescale Semiconductor, MC908GZ32VFAER Datasheet - Page 149
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MC908GZ32VFAER
Manufacturer Part Number
MC908GZ32VFAER
Description
IC MCU 8BIT 32K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GZ60CFJE.pdf
(352 pages)
Specifications of MC908GZ32VFAER
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GZ32VFAER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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The above parameters can be set by programming the bus timing registers, CBTR0 and CBTR1. See
12.13.3 MSCAN08 Bus Timing Register 0
Table 12-8
Freescale Semiconductor
gives an overview on the CAN conforming segment settings and the related parameter values.
Segment 1
It is the user’s responsibility to make sure that the bit timing settings are in
compliance with the CAN standard,
5 .. 10
4 .. 11
5 .. 12
6 .. 13
7 .. 14
8 .. 15
9 .. 16
Time
Table 12-4. CAN Standard Compliant Bit Time Segment Settings
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
SYNC
_SEG
Transmit point
Sample point
SYNC_SEG
1
Figure 12-9. Segments Within the Bit Time
TSEG1
3 .. 10
4 .. 11
5 .. 12
6 .. 13
7 .. 14
8 .. 15
4 .. 9
Table 12-3. Time Segment Syntax
System expects transitions to occur on the bus during this
period.
A node in transmit mode will transfer a new value to the CAN
bus at this point.
A node in receive mode will sample the bus at this point. If the
three samples per bit option is selected then this point marks
the position of the third sample.
NRZ SIGNAL
(PROP_SEG + PHASE_SEG1)
8... 25 TIME QUANTA
TIME SEGMENT 1
= 1 BIT TIME
Segment 2
and
4 ... 16
Time
2
3
4
5
6
7
8
12.13.4 MSCAN08 Bus Timing Register
NOTE
.
TSEG2
1
2
3
4
5
6
7
SAMPLE POINT
(SINGLE OR TRIPLE SAMPLING)
(PHASE_SEG2)
Synchronized
TIME SEG. 2
Jump Width
2 ... 8
1 .. 2
1 .. 3
1 .. 4
1 .. 4
1 .. 4
1 .. 4
1 .. 4
0 .. 1
0 .. 2
0 .. 3
0 .. 3
0 .. 3
0 .. 3
0 .. 3
SJW
1.
Clock System
149
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