Mux Channel Select | Freescale Semiconductor MC68HC908MR16 specs

I/O Registers

The voltage levels supplied from internal reference nodes as specified in Table 3-1are used to verify the operation of the ADC both in production test and for user applications.

Table 3-1. Mux Channel Select

ADCH4	ADCH3	ADCH2	ADCH1	ADCH0	Input Select

0	0	0	0	0	PTB0/ATD0

0	0	0	0	1	PTB1/ATD1

0	0	0	1	0	PTB2/ATD2

0	0	0	1	1	PTB3/ATD3

0	0	1	0	0	PTB4/ATD4

0	0	1	0	1	PTB5/ATD5

0	0	1	1	0	PTB6/ATD6

0	0	1	1	1	PTB7/ATD7

0	1	0	0	0	PTC0/ATD8

0	1	0	0	1	PTC1/ATD9(1)
0	1	0	1	0	Unused(2)
0	1	0	1	1	Ø

0	1	1	0	0	Ø

0	1	1	0	1	Ø

0	1	1	1	0	Ø

0	1	1	1	1	Ø

1	0	0	0	0	Ø

1	1	0	1	0	Unused(2)
1	1	0	1	1	Reserved(3)
1	1	1	0	0	Unused(2)
1	1	1	0	1	VREFH
1	1	1	1	0	VREFL
1	1	1	1	1	ADC power off

1.ATD9 is not available in the 56-pin SDIP package.

2.Used for factory testing.

3.If any unused channels are selected, the resulting ADC conversion will be unknown.

MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1

Freescale Semiconductor

MC68HC908MR16, MC68HC908MR32 specifications

Freescale Semiconductor's MC68HC908MR32 and MC68HC908MR16 microcontrollers are part of the popular HC08 family, designed primarily for embedded applications. These microcontrollers are particularly favored in automotive, industrial, and consumer product sectors due to their reliability and versatility.

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The MC68HC908MR32 variant is equipped with 32KB of flash memory, which allows for the storage of complex programs and extensive data handling. In contrast, the MC68HC908MR16 features 16KB of flash memory, making it ideal for simpler applications. Both microcontrollers also come with 1KB of RAM, enabling efficient data processing and real-time operations.

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For communication purposes, the MC68HC908MR series includes a serial communication interface, enabling easy integration with other devices and systems. This versatility facilitates the development of complex systems that require interaction with external components.

Security is another crucial aspect of these microcontrollers. They have built-in fail-safe mechanisms to ensure reliable operation under various conditions, making them suitable for critical systems. Additionally, their robust architecture helps to safeguard against potential disruptions or attacks.

In summary, Freescale Semiconductor's MC68HC908MR32 and MC68HC908MR16 microcontrollers are key players in the embedded systems landscape. Their blend of power efficiency, integrated features, and scalability ensures they remain relevant for a wide array of applications, making them a favored choice among engineers and developers looking for dependable solutions in a competitive market.

Freescale Semiconductor MC68HC908MR16, MC68HC908MR32 manual Mux Channel Select, Input Select

Models: MC68HC908MR16 MC68HC908MR32

Table 3-1. Mux Channel Select

ADCH4

ADCH3

ADCH2

ADCH1

ADCH0

Input Select

PTC0/ATD8

MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1

MC68HC908MR16, MC68HC908MR32 specifications