sc9s12hy64j0vllr Freescale Semiconductor, Inc, sc9s12hy64j0vllr Datasheet - Page 45

• Manufacturer Part Number: sc9s12hy64j0vllr
• Description: S12 Microcontrollers Mcu 16-bit Hcs12 Cisc 32kb Flash 5v Tray
• Manufacturer: Freescale Semiconductor, Inc

1.7.4.6
External power supply pins for the Port U and Port V. VDDM2 and VDDM1 as well as VSSM2 and
VSSM1 are internal connected together.
1.7.4.7
VLCD is the voltage reference pin for the LCD driver. Adjusting the voltage on this pin will change the
display contrast.
1.7.4.8
1.8
For the system clock description please refer to chapter
Management Unit (S12CPMU) Block
Frame
Freescale Semiconductor
Frequency, it is always connected to the internal 1MHZ RC output.
System Clock Description
VDDM[2:1] / VSSM[2:1]— Power Supply Pins for Motor 0 to 3
VLCD— Power Supply Reference Pin for LCD driver
Power and Ground Connection Summary
VDDA/VRH
Mnemonic
VSSA/VRL
VDDM[2:1]
VSSM[2:1]
VSSPLL
VDDR
VDDX
VSSX
VLCD
VSS3
Table 1-9. Power and Ground Connection Summary
MC9S12HY/HA-Family Reference Manual, Rev. 1.04
Nominal
Voltage
5.0 V
5.0 V
5.0 V
5.0 V
5.0 V
Description. For the LCD IRCCLK in
0 V
0 V
0 V
0 V
0 V
External power supply to internal voltage
regulator
External power and ground, supply to pin
drivers
Operating voltage and ground for the
analog-to-digital converters and the
reference for the internal voltage regulator,
allows the supply voltage to the A/D to be
bypassed independently.AlsorReference
voltages for the analog-to-digital converter.
Internal power and ground generated by
internal regulator for the internal core.
Provides operating voltage and ground for
the phased-locked loop. This allows the
supply voltage to the PLL to be bypassed
independently. Internal power and ground
generated by internal regulator.
External power and ground, supply to Port
U/V motor drivers
External voltage reference for the LCD
driver
Chapter 7, “S12 Clock, Reset and Power
Description
Device Overview MC9S12HY/HA-Family
Table 18-8. LCD Clock and
45