MC908AZ60ACFU Freescale Semiconductor, MC908AZ60ACFU Datasheet - Page 290

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MC908AZ60ACFU

Manufacturer Part Number
MC908AZ60ACFU
Description
IC MCU FLASH 8.4MHZ 60K 64QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet

Specifications of MC908AZ60ACFU

Core Processor
HC08
Core Size
8-Bit
Speed
8.4MHz
Connectivity
CAN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
52
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 15x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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MSCAN Controller (MSCAN08)
23.13.4 MSCAN08 Bus Timing Register 1
SAMP — Sampling
TSEG22–TSEG10 — Time Segment
1. In this case PHASE_SEG1 must be at least 2 time quanta.
290
1. This setting is not valid. Please refer to
TSEG13
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.
Time segments within the bit time fix the number of clock cycles per bit time and the location of the
sample point. Time segment 1 (TSEG1) and time segment 2 (TSEG2) are programmable as shown in
Table
The bit time is determined by the oscillator frequency, the baud rate prescaler, and the number of time
quanta (T
0
0
0
0
1
.
.
1 = Three samples per bit
0 = One sample per bit
23-8.
TSEG12
q
) clock cycles per bit as shown in
Address:
The CBTR1 register can only be written if the SFTRES bit in the MSCAN08
module control register is set.
0
0
0
0
1
.
.
Reset:
Read:
Write:
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
TSEG11
$0503
SAMP
Bit time=
Bit 7
0
0
0
1
1
1
.
.
Figure 23-18. Bus Timing Register 1 (CBTR1)
TSEG22
(1)
TSEG10
6
0
Table 23-8. Time Segment Values
0
1
0
1
1
Table 23-4
.
.
f
Pres value
MSCANCLK
TSEG21
5
0
2 T
3T
16 T
1 T
4 T
Segment 1
for valid settings.
q
q
q
Time
q
Cycles
Table
Cycles
q
Cycle
Cycles
NOTE
.
.
Cycles
TSEG20
• number of Time Quanta
4
0
(1)
(1)
(1)
23-8).
TSEG13
3
0
TSEG22
0
0
1
.
.
TSEG12
2
0
TSEG21
0
0
1
.
.
TSEG11
1
0
TSEG20
Freescale Semiconductor
0
1
1
.
.
TSEG10
Bit 0
0
1 T
2 T
Segment 2
8T
q
q
Time
q
Cycle
Cycles
Cycles
.
.
(1)

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