MC9S08QG8CDNER Freescale Semiconductor, MC9S08QG8CDNER Datasheet - Page 150

• Manufacturer Part Number: MC9S08QG8CDNER
• Description: IC MCU 8K FLASH 8-SOIC
• Manufacturer: Freescale Semiconductor
• Series: HCS08r

Specifications of MC9S08QG8CDNER

• Core Processor: HCS08
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 4
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• For Use With: DEMO9S08QG8E - BOARD DEMO FOR MC9S08QG8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: MC9S08QG8CDNERTR

Internal Clock Source (S08ICSV1)
10.3.2
148
EREFSTEN
ERCLKEN
RANGE
EREFS
Field
BDIV
HGO
7:6
LP
5
4
3
2
1
0
Reset:
W
R
ICS Control Register 2 (ICSC2)
Bus Frequency Divider — Selects the amount to divide down the clock source selected by the CLKS bits. This
controls the bus frequency.
00
01
10
11
Frequency Range Select — Selects the frequency range for the external oscillator.
1 High frequency range selected for the external oscillator
0 Low frequency range selected for the external oscillator
High Gain Oscillator Select — The HGO bit controls the external oscillator mode of operation.
1 Configure external oscillator for high gain operation
0 Configure external oscillator for low power operation
Low Power Select — The LP bit controls whether the FLL is disabled in FLL bypassed modes.
1 FLL is disabled in bypass modes unless BDM is active
0 FLL is not disabled in bypass mode
External Reference Select — The EREFS bit selects the source for the external reference clock.
1 Oscillator requested
0 External Clock Source requested
External Reference Enable — The ERCLKEN bit enables the external reference clock for use as ICSERCLK.
1 ICSERCLK active
0 ICSERCLK inactive
External Reference Stop Enable — The EREFSTEN bit controls whether or not the external reference clock
remains enabled when the ICS enters stop mode.
1 External reference clock stays enabled in stop if ERCLKEN is set or if ICS is in FEE, FBE, or FBELP mode
0 External reference clock is disabled in stop
before entering stop
Encoding 0 — Divides selected clock by 1
Encoding 1 — Divides selected clock by 2 (reset default)
Encoding 2 — Divides selected clock by 4
Encoding 3 — Divides selected clock by 8
0
7
BDIV
Table 10-2. ICS Control Register 2 Field Descriptions
1
6
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
Figure 10-4. ICS Control Register 2 (ICSC2)
RANGE
5
0
HGO
0
4
Description
LP
3
0
EREFS
0
2
ERCLKEN EREFSTEN
Freescale Semiconductor
1
0
0
0