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參數(shù)資料
| 型號(hào)： | MC9RS08KA1CDB |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 136/136頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC MCU 8-BIT 1K FLASH 6-DFN |
| 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： | 490 |
| 系列： | RS08 |
| 核心處理器： | RS08 |
| 芯體尺寸： | 8-位 |
| 速度： | 10MHz |
| 外圍設(shè)備： | LVD，POR，WDT |
| 輸入/輸出數(shù)： | 2 |
| 程序存儲(chǔ)器容量： | 1KB（1K x 8） |
| 程序存儲(chǔ)器類型： | 閃存 |
| RAM 容量： | 63 x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 1.8 V ~ 5.5 V |
| 振蕩器型： | 內(nèi)部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 6-VDFN 裸露焊盤 |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁(yè)面： | 726 (CN2011-ZH PDF) |
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Chapter 12 Development Support
MC9RS08KA2 Series Data Sheet, Rev. 4
Freescale Semiconductor
99
Figure 12-2. Standard RS08 BDM Tool Connector
Background debug controller (BDC) serial communications use a custom serial protocol that was first
introduced on the M68HC12 Family of microcontrollers. This protocol requires that the host knows the
communication clock rate, which is determined by the target BDC clock rate. If a host is attempting to
communicate with a target MCU that has an unknown BDC clock rate, a SYNC command may be sent to
the target MCU to request a timed sync response signal from which the host can determine the correct
communication speed.
For RS08 MCUs, the BDC clock is the same frequency as the MCU bus clock. For a detailed description
of the communications protocol, refer to Section 12.3.2, “Communication Details."
12.3.1
BKGD Pin Description
BKGD is the single-wire background debug interface pin. BKGD is a pseudo-open-drain pin that contains
an on-chip pullup, therefore it requires no external pullup resistor. Unlike typical open-drain pins, the
external resistor capacitor (RC) time constant on this pin, which is influenced by external capacitance,
plays almost no role in signal rise time. The custom protocol provides for brief, actively driven speedup
pulses to force rapid rise times on this pin without risking harmful drive level conflicts. Refer to
Section 12.3.2, “Communication Details," for more detail.
The primary function of this pin is bidirectional serial communication of background debug commands
and data. During reset, this pin selects between starting in active background mode and normal user mode
running an application program. This pin is also used to request a timed sync response pulse to allow a
host development tool to determine the target BDC clock frequency.
By controlling the BKGD pin and forcing an MCU reset (issuing a BDC_RESET command, or through a
power-on reset (POR)), the host can force the target system to reset into active background mode rather
than start the user application program. This is useful to gain control of a target MCU whose FLASH
program memory has not yet been programmed with a user application program.
When no debugger pod is connected to the 6-pin BDM interface connector, the internal pullup on BKGD
determines the normal operating mode.
On some RS08 devices, the BKGD pin may be shared with an alternative output-only function. To support
BDM debugging, the user must disable this alternative function. Debugging of the alternative function
must be done in normal user mode without using BDM.
12.3.2
Communication Details
The BDC serial interface requires the host to generate a falling edge on the BKGD pin to indicate the start
of each bit time. The host provides this falling edge whether data is transmitted or received.
2
4
6
5
3
1
RESET/VPP
BKGD
GND
V
DD
NO CONNECT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC9RS08KA1CDBR | 功能描述:8位微控制器 -MCU 1K FLSH W/ACMP 62RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| MC9RS08KA1CPC | 功能描述:8位微控制器 -MCU 1K FLASH W/ ACMP 62 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| MC9RS08KA1CSC | 功能描述:8位微控制器 -MCU 1K FLASH W/ ACMP 62 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| MC9RS08KA1CSCR | 功能描述:8位微控制器 -MCU 1K FLASH W/ ACMP 62 RAM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| MC9RS08KA1DB | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers |
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