Device Overview MC9S12G-Family
?
?
Bus-off recovery by software intervention or automatically
16-bit time stamp of transmitted/received messages
1.3.12
Serial Communication Interface Module (SCI)
?
?
?
?
?
?
?
?
?
Up to three SCI modules
Full-duplex or single-wire operation
Standard mark/space non-return-to-zero (NRZ) format
Selectable IrDA 1.4 return-to-zero-inverted (RZI) format with programmable pulse widths
13-bit baud rate selection
Programmable character length
Programmable polarity for transmitter and receiver
Active edge receive wakeup
Break detect and transmit collision detect supporting LIN 1.3, 2.0, 2.1 and SAE J2602
1.3.13
Serial Peripheral Interface Module (SPI)
?
?
?
?
?
?
?
Up to three SPI modules
Con?gurable 8- or 16-bit data size
Full-duplex or single-wire bidirectional
Double-buffered transmit and receive
Master or slave mode
MSB-?rst or LSB-?rst shifting
Serial clock phase and polarity options
1.3.14
Analog-to-Digital Converter Module (ADC)
Up to 16-channel, 10-bit/12-bit 1 analog-to-digital converter
— 3 us conversion time
— 8-/10 1 -bit resolution
— Left or right justi?ed result data
— Wakeup from low power modes on analog comparison > or <= match
— Continuous conversion mode
— External triggers to initiate conversions via GPIO or peripheral outputs such as PWM or TIM
— Multiple channel scans
— Precision ?xed voltage reference for ADC conversions
? Pins can also be used as digital I/O including wakeup capability
1. 12-bit resolution only available on S12GA192 and S12GA240 devices.
MC9S12G Family Reference Manual, Rev.1.23
46
Freescale Semiconductor
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