Device User Guide — 9S12C128DGV1/D V01.05

The Low Voltage Reset feature uses the low voltage reset signal from the VREG module as an input to the CRG module. When the regulator output voltage supply to the internal chip logic falls below a specified threshold the LVR signal from the VREG module causes the CRG module to generate a reset. Consult the VREG Block User Guide for voltage level specifications.

9.1.1 XCLKS

The XCLKS input signal is active low (see 2.3.8 PE7 / NOACC / XCLKS — Port E I/O Pin 7 ).

Section 10 Oscillator (OSC) Block Description

Consult the OSC Block User Guide for information about the Oscillator module.

Section 11 Timer (TIM) Block Description

Consult the TIM_16B8C Block User Guide for information about the Timer module.

Section 12 Analog to Digital Converter (ATD) Block Description

12.1 Device-specific information

12.1.1 VRL (voltage reference low)

In the 48 and 52 pin package versions, the VRL pad is bonded internally to the VSSA pin.

Consult the ATD_10B8C Block User Guide for further information about the A/D Converter module.

Section 13 Serial Communications Interface (SCI) Block Description

Consult the SCI Block User Guide for information about the Asynchronous Serial Communications Interface module.

Section 14 Serial Peripheral Interface (SPI) Block Description

Consult the SPI Block User Guide for information about the Serial Peripheral Interface module.

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Motorola MC9S12GC-Family, MC9S12C-Family warranty Oscillator OSC Block Description, Timer TIM Block Description