MCF51EM128CLL Freescale Semiconductor, MCF51EM128CLL Datasheet - Page 256

• Manufacturer Part Number: MCF51EM128CLL
• Description: IC MCU 32BIT 128KB FLASH 100LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF51EMr

Specifications of MCF51EM128CLL

• Core Processor: Coldfire V1
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LCD, LVD, PWM, WDT
• Number Of I /o: 63
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 16x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Processor Series: MCF51EM
• Core: ColdFire V1
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: RS-232, LIN
• Maximum Clock Frequency: 50 MHz
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: TWR-MCF51CN-KIT, TWR-SER, TWR-ELEV, TOWER
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Internal Clock Source (ICS)
11.1.2
11-2
RESERVED
TEST
Field
SEL
7-3
EN
2
1
0
Reset:
W
R
Clock Check & Select Control (CCSCTRL)
Reserved — These bits read as zero. Writes are ignored
EN bit
0 = The OSCOUT1, OSCOUT2 and ICSIRCLK inputs to the clock check counters are disabled for power saving.
1 = The clock inputs are enabled.
TEST
Writing a “1” to this bit will clear CSSTMR1, CSSTMR2 and CSSTMRIR. The three counters will then begin
incrementing until any one of the three hits 0xFF, at which point the test completes, and TEST is cleared.
External Clock Select
0 = XOSC2 is selected as the external clock input to the ICS (default)
1 = XOSC1 is selected as the external clock input to the ICS
This bit should only be changed when the ICS is NOT utilizing the external clock input.
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
7
0
0
Clock Check
& Select
Figure 11-2. Clock Check & Select Control Register (CSSCTRL)
ICS
Figure 11-1. ICS Clock Check and Select Block Diagram
Table 11-2. CSS Control Register Field Descriptions
oscillator control
0
0
6
OSCOUT2
to LCD
XOSC2
0
0
5
OSCOUT1
XOSC1
0
0
4
Description
separate power domain
Independent
0
0
3
RTC
EN
0
2
TAMPER
VBAT
TEST
Freescale Semiconductor
0
1
SEL
0
0