MCL908QY2CDTE Freescale Semiconductor, MCL908QY2CDTE Datasheet - Page 95

• Manufacturer Part Number: MCL908QY2CDTE
• Description: IC MCU 8BIT 1.5K FLASH 16-TSSOP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MCL908QY2CDTE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 2MHz
• Peripherals: LVD, POR, PWM
• Number Of I /o: 13
• Program Memory Size: 1.5KB (1.5K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 16-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -

11.6 Oscillator During Break Mode
The oscillator continues to drive BUSCLKX2 and BUSCLKX4 when the device enters the break state.
11.7 CONFIG2 Options
Two CONFIG2 register options affect the operation of the oscillator module: OSCOPT1 and OSCOPT0.
All CONFIG2 register bits will have a default configuration. Refer to
(CONFIG)
Table 11-2
11.8 Input/Output (I/O) Registers
The oscillator module contains these two registers:
11.8.1 Oscillator Status Register
The oscillator status register (OSCSTAT) contains the bits for switching from internal to external clock
sources.
ECGON — External Clock Generator On Bit
ECGST — External Clock Status Bit
Freescale Semiconductor
1. Oscillator status register (OSCSTAT)
2. Oscillator trim register (OSCTRIM)
This read/write bit enables external clock generator, so that the switching process can be initiated. This
bit is forced low during reset. This bit is ignored in monitor mode with the internal oscillator bypassed.
This read-only bit indicates whether or not an external clock source is engaged to drive the system
clock.
1 = External clock generator enabled
0 = External clock generator disabled
1 = An external clock source engaged
0 = An external clock source disengaged
for more information on how the CONFIG2 register is used.
shows how the OSCOPT bits are used to select the oscillator clock source.
Address: $0036
Reset:
Read:
Write:
Bit 7
OSCOPT1
R
R
0
Figure 11-4. Oscillator Status Register (OSCSTAT)
0
0
1
1
= Reserved
MC68HLC908QY/QT Family Data Sheet, Rev. 3
R
6
0
Table 11-2. Oscillator Modes
OSCOPT0
0
1
0
1
R
5
0
Internal Oscillator
External Oscillator
External RC
External Crystal
R
4
0
= Unimplemented
Oscillator Modes
R
3
0
Chapter 5 Configuration Register
R
2
0
ECGON
Oscillator During Break Mode
1
0
ECGST
Bit 0
0
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