MC9S08QG8CPBE Freescale, MC9S08QG8CPBE Datasheet - Page 151
MC9S08QG8CPBE
Manufacturer Part Number
MC9S08QG8CPBE
Description
Manufacturer
Freescale
Datasheet
1.MC9S08QG8CPBE.pdf
(314 pages)
Specifications of MC9S08QG8CPBE
Cpu Family
HCS08
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
I2C/SCI/SPI
Total Internal Ram Size
512Byte
# I/os (max)
12
Number Of Timers - General Purpose
1
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
1.8V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
16
Package Type
PDIP
Program Memory Type
Flash
Program Memory Size
8KB
Lead Free Status / RoHS Status
Compliant
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Manufacturer
Quantity
Price
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Part Number:
MC9S08QG8CPBE
Manufacturer:
CYPRESS
Quantity:
310
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10.3.3
10.3.4
Freescale Semiconductor
CLKST
FTRIM
Field
TRIM
Field
7:0
3:2
1
0
Reset:
Reset:
POR:
POR:
W
W
R
R
ICS Trim Register (ICSTRM)
ICS Status and Control (ICSSC)
ICS Trim Setting — The TRIM bits control the internal reference clock frequency by controlling the internal
reference clock period. The bits’ effect are binary weighted (i.e., bit 1 will adjust twice as much as bit 0).
Increasing the binary value in TRIM will increase the period, and decreasing the value will decrease the period.
An additional fine trim bit is available in ICSSC as the FTRIM bit.
Clock Mode Status — The CLKST bits indicate the current clock mode. The CLKST bits don’t update
immediately after a write to the CLKS bits due to internal synchronization between clock domains.
00
01
11
OSC Initialization — If the external reference clock is selected by ERCLKEN or by the ICS being in FEE, FBE,
or FBELP mode, and if EREFS is set, then this bit is set after the initialization cycles of the external oscillator
clock have completed. This bit is only cleared when either ERCLKEN or EREFS are cleared.
ICS Fine Trim — The FTRIM bit controls the smallest adjustment of the internal reference clock frequency.
Setting FTRIM will increase the period and clearing FTRIM will decrease the period by the smallest amount
possible.
Output of FLL is selected.
FLL Bypassed, Internal reference clock is selected.10FLL Bypassed, External reference clock is selected.
Reserved.
U
1
7
7
0
0
0
Table 10-4. ICS Status and Control Register Field Descriptions
Figure 10-6. ICS Status and Control Register (ICSSC)
Table 10-3. ICS Trim Register Field Descriptions
U
0
0
0
0
6
6
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
Figure 10-5. ICS Trim Register (ICSTRM)
U
0
0
0
0
5
5
U
0
0
0
0
4
4
Description
Description
TRIM
U
0
0
0
3
3
CLKST
U
0
0
0
2
2
Internal Clock Source (S08ICSV1)
OSCINIT
U
0
0
0
1
1
FTRIM
U
U
0
0
0
0
149
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