DEMO9S08JM16 Freescale Semiconductor, DEMO9S08JM16 Datasheet - Page 132

BOARD DEMO FOR JM16 FAMI

DEMO9S08JM16

Manufacturer Part Number
DEMO9S08JM16
Description
BOARD DEMO FOR JM16 FAMI
Manufacturer
Freescale Semiconductor
Type
MCUr

Specifications of DEMO9S08JM16

Contents
Board with Daughter card, Cable, Documentation, Mini-AB USB Kit
Processor To Be Evaluated
MC9S08JM16
Data Bus Width
8 bit
Interface Type
USB
Silicon Manufacturer
Freescale
Core Architecture
HCS08
Core Sub-architecture
HCS08
Silicon Core Number
MC9S08
Silicon Family Name
Flexis - S08JM
Rohs Compliant
Yes
For Use With/related Products
MC9S08JM16
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Analog Comparator (S08ACMPV2)
9.4
The analog comparator can be used to compare two analog input voltages applied to ACMP+ and ACMP–;
or it can be used to compare an analog input voltage applied to ACMP– with an internal bandgap reference
voltage. ACBGS is used to select between the bandgap reference voltage or the ACMP+ pin as the input
to the non-inverting input of the analog comparator. The comparator output is high when the non-inverting
input is greater than the inverting input, and is low when the non-inverting input is less than the inverting
input. ACMOD is used to select the condition which will cause ACF to be set. ACF can be set on a rising
edge of the comparator output, a falling edge of the comparator output, or either a rising or a falling edge
(toggle). The comparator output can be read directly through ACO. The comparator output can be driven
onto the ACMPO pin using ACOPE.
132
ACMOD
ACOPE
Field
1:0
2
Functional Description
Analog Comparator Output Pin Enable — ACOPE is used to enable the comparator output to be placed onto
the external pin, ACMPO.
0 Analog comparator output not available on ACMPO
1 Analog comparator output is driven out on ACMPO
Analog Comparator Mode — ACMOD selects the type of compare event which sets ACF.
00 Encoding 0 — Comparator output falling edge
01 Encoding 1 — Comparator output rising edge
10 Encoding 2 — Comparator output falling edge
11 Encoding 3 — Comparator output rising or falling edge
Table 9-2. ACMP Status and Control Register Field Descriptions (continued)
MC9S08JM16 Series Data Sheet, Rev. 2
Description
Freescale Semiconductor

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