DEMO9S08EL32 Freescale Semiconductor, DEMO9S08EL32 Datasheet - Page 133

• Manufacturer Part Number: DEMO9S08EL32
• Description: BOARD DEMO FOR 9S08 EL MCU
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S08EL32

• Contents: Evaluation Board
• Processor To Be Evaluated: MC9S08EL32
• Data Bus Width: 8 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 12 V
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08
• Core Sub-architecture: HCS08
• Silicon Core Number: MC9S08
• Silicon Family Name: S08EL
• Rohs Compliant: Yes
• For Use With/related Products: MC9S08EL32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.2
The ACMP has two analog input pins, ACMPx+ and ACMPx- and one digital output pin ACMPxO. Each
of these pins can accept an input voltage that varies across the full operating voltage range of the MCU.
As shown in
ACMPx+ pin is connected to the comparator non-inverting input if ACBGS is a 0. As shown in
the ACMPxO pin can be enabled to drive an external pin.
The signal properties of ACMP are shown in
9.3
9.3.1
The ACMP includes one register:
Refer to the direct-page register summary in the memory section of this data sheet for the absolute address
assignments for all ACMP registers.This section refers to registers and control bits only by their names .
Some MCUs may have more than one ACMP, so register names include placeholder characters to identify
which ACMP is being referenced.
Freescale Semiconductor
•
An 8-bit status and control register
External Signal Description
Memory Map
Register Descriptions
Figure
9-2, the ACMPx- pin is connected to the inverting input of the comparator, and the
MC9S08EL32 Series and MC9S08SL16 Series Data Sheet, Rev. 3
ACMPxO
ACMPx+
ACMPx-
Signal
Inverting analog input to the ACMP.
(Minus input)
Non-inverting analog input to the ACMP.
(Positive input)
Digital output of the ACMP.
Table 9-2. Signal Properties
Table
Function
9-2.
I/O
O
I
I
Analog Comparator (S08ACMPV2)
Figure
9-2,
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