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| 型號(hào)： | DEMO9RS08KA2 |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 48/136頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | DEMO BOARD FOR 9RS08KA2 |
| 產(chǎn)品培訓(xùn)模塊： | Mechatronics USBSpyder08 Discovery Kit RS08KA2 Low-End Microcontroller Series MC9RS08KA8 Microcontroller |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | RS08 |
| 類型： | MCU |
| 適用于相關(guān)產(chǎn)品： | MC9RS08KA2 |
| 所含物品： | 板，線纜，CD，文檔，樣品 IC |
| 產(chǎn)品目錄頁(yè)面： | 730 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)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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Chapter 2 Pins and Connections
MC9RS08KA2 Series Data Sheet, Rev. 4
Freescale Semiconductor
19
2.4.1
Power
VDD and VSS are the primary power supply pins for the MCU. This voltage source supplies power to all I/O
buffer circuitry and to an internal voltage regulator. The internal voltage regulator provides a regulated
lower-voltage source to the CPU and other internal circuitry of the MCU.
Typically, application systems have two separate capacitors across the power pins: a bulk electrolytic
capacitor, such as a 10-
μF tantalum capacitor, to provide bulk charge storage for the overall system, and a
bypass capacitor, such as a 0.1-
μF ceramic capacitor, located as near to the MCU power pins as practical
to suppress high-frequency noise.
2.4.2
PTA2/KBIP2/TCLK/RESET/VPP
After a power-on reset (POR) into user mode, the PTA2/KBIP2/TCLK/RESET/VPP pin defaults to a
general-purpose input port pin, PTA2. Setting RSTPE in SOPT configures the pin to be the RESET input
pin. After configured as RESET, the pin will remain as RESET until the next POR. The RESET pin can
be used to reset the MCU from an external source when the pin is driven low. When enabled as the RESET
pin (RSTPE = 1), the internal pullup device is automatically enabled.
External VPP voltage (typically 12 V, see Section A.10, “FLASH Specifications”) is required on this pin
when performing Flash programming or erasing. The VPP connection is always connected to the internal
Flash module regardless of the pin function. To avoid over stressing the Flash, external VPP voltage must
be removed and voltage higher than VDD must be avoided when Flash programming or erasing is not
taking place.
NOTE
This pin does not contain a clamp diode to VDD and should not be driven
above VDD when Flash programming or erasing is not taking place.
2.4.3
PTA3/ACMPO/BKGD/MS
The background / mode select function is shared with an output-only pin on PTA3 pin and the optional
analog comparator output. While in reset, the pin functions as a mode select pin. Immediately after reset
rises, the pin functions as the background pin and can be used for background debug communication.
While functioning as a background / mode select pin, this pin has an internal pullup device enabled. To use
as an output-only port, BKGDPE in SOPT must be cleared.
If nothing is connected to this pin, the MCU will enter normal operating mode at the rising edge of reset.
If a debug system is connected to the 6-pin standard background debug header, it can hold BKGD/MS low
during the power-on-reset, which forces the MCU to active background mode.
The BKGD pin is used primarily for background debug controller (BDC) communications using a custom
protocol that uses 16 clock cycles of the target MCU’s BDC clock per bit time. The target MCU’s BDC
clock equals the bus clock rate; therefore, no significant capacitance should connected to the BKGD/MS
pin that could interfere with background serial communications.
Although the BKGD pin is a pseudo open-drain pin, the background debug communication protocol
provides brief, actively driven, high speedup pulses to ensure fast rise times. Small capacitances from
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相關(guān)代理商/技術(shù)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(chǎn)品:Development Kits 工具用于評(píng)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(chǎn)品:Development Kits 工具用于評(píng)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(chǎn)品:Development Kits 工具用于評(píng)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(chǎn)品:Development Kits 工具用于評(píng)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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