s908qy2ad1vdwer Freescale Semiconductor, Inc, s908qy2ad1vdwer Datasheet - Page 94

• Manufacturer Part Number: s908qy2ad1vdwer
• Description: Mc68hc908qt4a Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Oscillator (OSC) Module
11.3.1 Internal Signal Definitions
The following signals and clocks are used in the functional description and figures of the OSC module.
11.3.1.1 Oscillator Enable Signal (SIMOSCEN)
The SIMOSCEN signal comes from the system integration module (SIM) and disables the XTAL oscillator
circuit, the RC oscillator, or the internal oscillator in stop mode. OSCENINSTOP in the configuration
register can be used to override this signal.
94
RST, IRQ: Pins have internal pull up device
All port pins have programmable pull up device
PTA[0:5]: Higher current sink and source capability
PTB[0:7]: Not available on 8-pin devices
PTA4/OSC2/AD2/KBI4
PTA5/OSC1/AD3/KBI5
PTA0/TCH0/AD0/KBI0
PTA1/TCH1/AD1/KBI1
PTA2/IRQ/KBI2/TCLK
PTA3/RST/KBI3
MC68HC908QY4A
POWER SUPPLY
PTB0/AD4
PTB1/AD5
128 BYTES
USER RAM
PTB2
PTB3
PTB4
PTB5
PTB6
PTB7
Figure 11-1. Block Diagram Highlighting OSC Block and Pins
MC68HC908QYA/QTA Family Data Sheet, Rev. 2
V
V
DD
SS
MC68HC908QY4A
M68HC08 CPU
USER FLASH
4096 BYTES
DEVELOPMENT SUPPORT
KEYBOARD INTERRUPT
SINGLE INTERRUPT
Freescale Semiconductor
2-CHANNEL 16-BIT
TIMER MODULE
AUTO WAKEUP
LOW-VOLTAGE
BREAK MODULE
MONITOR ROM
GENERATOR
6-CHANNEL
10-BIT ADC
MODULE
MODULE
MODULE
MODULE
CLOCK
INHIBIT
COP