MC9S08GT32ACFDER Freescale Semiconductor, MC9S08GT32ACFDER Datasheet - Page 124
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MC9S08GT32ACFDER
Manufacturer Part Number
MC9S08GT32ACFDER
Description
MCU 8BIT 32K FLASH 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheet
1.MC9S08GT60ACFDER.pdf
(302 pages)
Specifications of MC9S08GT32ACFDER
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-QFN Exposed Pad
Processor Series
S08GT
Core
HCS08
3rd Party Development Tools
EWS08
Development Tools By Supplier
M68EVB908GB60E, M68DEMO908GB60E
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Internal Clock Generator (S08ICGV2)
7.5.1
124
OSCSTEN
Reset
RANGE
LOCD
REFS
CLKS
Field
HGO
4:3
7
6
5
2
1
W
R
ICG Control Register 1 (ICGC1)
HGO
High Gain Oscillator Select — The HGO bit is used to select between low-power operation and high-amplitude
operation.
0 Oscillator configured for low power operation.
1 Oscillator configured for high amplitude operation.
Frequency Range Select — The RANGE bit controls the oscillator, reference divider, and FLL loop prescaler
multiplication factor (P). It selects one of two reference frequency ranges for the ICG. The RANGE bit is
write-once after a reset. The RANGE bit only has an effect in FLL engaged external and FLL bypassed external
modes.
0 Oscillator configured for low frequency range. FLL loop prescale factor P is 64.
1 Oscillator configured for high frequency range. FLL loop prescale factor P is 1.
External Reference Select — The REFS bit controls the external reference clock source for ICGERCLK. The
REFS bit is write-once after a reset.
0 External clock requested.
1 Oscillator using crystal or resonator requested.
Clock Mode Select — The CLKS bits control the clock mode. If FLL bypassed external is requested, it will not
be selected until ERCS = 1. If the ICG enters off mode, the CLKS bits will remain unchanged. Writes to the CLKS
bits will not take effect if a previous write is not complete.
The CLKS bits are writable at any time, unless the first write after a reset was CLKS = 0X, the CLKS bits cannot
be written to 1X until after the next reset (because the EXTAL pin was not reserved).
00 Self-clocked
01 FLL engaged, internal reference
10 FLL bypassed, external reference
11 FLL engaged, external reference
Enable Oscillator in Off Mode — The OSCTEN bit controls whether or not the oscillator circuit remains enabled
when the ICG enters off mode.
0 Oscillator disabled when ICG is in off mode unless ENABLE is high, CLKS = 10, and REFST = 1.
1 Oscillator enabled when ICG is in off mode, CLKS = 1X and REFST = 1.
Loss of Clock Disable
0 Loss of clock detection enabled.
1 Loss of clock detection disabled.
0
7
= Unimplemented or Reserved
RANGE
1
6
Figure 7-12. ICG Control Register 1 (ICGC1)
Table 7-6. ICGC1 Field Descriptions
REFS
MC9S08GB60A Data Sheet, Rev. 2
0
5
0
4
Description
CLKS
3
0
OSCSTEN
1
2
Freescale Semiconductor
LOCD
0
1
0
0
0
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