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| 型號： | DEMO9RS08KA2 |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 123/136頁 |
| 文件大小： | 0K |
| 描述： | DEMO BOARD FOR 9RS08KA2 |
| 產品培訓模塊： | Mechatronics USBSpyder08 Discovery Kit RS08KA2 Low-End Microcontroller Series MC9RS08KA8 Microcontroller |
| 標準包裝： | 1 |
| 系列： | RS08 |
| 類型： | MCU |
| 適用于相關產品： | MC9RS08KA2 |
| 所含物品： | 板，線纜，CD，文檔，樣品 IC |
| 產品目錄頁面： | 730 (CN2011-ZH PDF) |
| 相關產品： | MC9RS08KA2CSCRTR-ND - IC MCU 8BIT 2K FLASH 8-SOIC PC9RS08KA2PAE-ND - MCU 8BIT 2KB FLASH RS08 8-DIP PC9RS08KA2FPE-ND - MCU 8BIT 2KB FLASH RS08 6-VDFN PC9RS08KA2DWE-ND - MCU 8BIT 2KB FLASH RS08 8-SOIC MC9RS08KA2CPC-ND - IC MCU 8-BIT 2K FLASH 8-PDIP MC9RS08KA2CDB-ND - IC MCU 8-BIT 2K FLASH 6-DFN MC9RS08KA2CSC-ND - IC MCU 8-BIT 2K FLASH 8-SOIC |
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Analog Comparator (RS08ACMPV1)
MC9RS08KA2 Series Data Sheet, Rev. 4
Freescale Semiconductor
87
10.4
Functional Description
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 it 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 also be driven onto the ACMPO pin using ACOPE.
Table 10-2. ACMPSC Field Descriptions
Field
Description
7
ACME
Analog Comparator Module Enable — ACME enables the ACMP module.
0 ACMP not enabled.
1 ACMP is enabled.
6
ACBGS
Analog Comparator Bandgap Select — ACBGS is used to select between the internal bandgap reference
voltage or the ACMP+ pin as the non-inverting input of the analog comparator.
0 External pin ACMP+ selected as non-inverting input to comparator.
1 Internal bandgap reference voltage selected as non-inverting input to comparator.
5
ACF
Analog Comparator Flag — ACF is set when a compare event occurs. Compare events are defined by ACMOD.
ACF is cleared by writing a one to ACF.
0 Compare event has not occurred.
1 Compare event has occurred.
4
ACIE
Analog Comparator Interrupt Enable — ACIE enables the interrupt for the ACMP. When ACIE is set, an
interrupt will be asserted when ACF is set.
0 Interrupt disabled.
1 Interrupt enabled.
3
ACO
Analog Comparator Output — Reading ACO will return the current value of the analog comparator output. ACO
is reset to a 0 and will read as a 0 when the ACMP is disabled (ACME = 0).
2
ACOPE
Analog Comparator Output Pin Enable — ACOPE is used to enable the comparator output to be placed onto
the external pin, ACMPO. ACOPE will only control the pin if the ACMP is active (ACME=1).
0 Analog comparator output not available on ACMPO.
1 Analog comparator output is driven out on ACMPO.
1:0
ACMOD
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.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DEMO9RS08KA8 | 功能描述:開發(fā)板和工具包 - S08 / S12 DEMO BOARD FOR KA8 PRODUCT RoHS:否 產品:Development Kits 工具用于評估:MC9S12G128 核心:S12 接口類型:CAN, LIN, RS-232, USB 工作電源電壓:5 V 制造商:Freescale Semiconductor |
| DEMO9RS08KB12 | 功能描述:開發(fā)板和工具包 - S08 / S12 KB12 DEMO Board RoHS:否 產品:Development Kits 工具用于評估:MC9S12G128 核心:S12 接口類型:CAN, LIN, RS-232, USB 工作電源電壓:5 V 制造商:Freescale Semiconductor |
| DEMO9RS08KB12 | 制造商:Freescale Semiconductor 功能描述:; LEADED PROCESS COMPATIBLE:YES; PEAK RE |
| DEMO9RS08LA8 | 功能描述:開發(fā)板和工具包 - S08 / S12 DEMO BOARD FOR LA8 RoHS:否 產品:Development Kits 工具用于評估:MC9S12G128 核心:S12 接口類型:CAN, LIN, RS-232, USB 工作電源電壓:5 V 制造商:Freescale Semiconductor |
| DEMO9RS08LE4 | 功能描述:開發(fā)板和工具包 - S08 / S12 LE4 Family Demo Board RoHS:否 產品:Development Kits 工具用于評估:MC9S12G128 核心:S12 接口類型:CAN, LIN, RS-232, USB 工作電源電壓:5 V 制造商:Freescale Semiconductor |
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