參數(shù)資料
型號： MC9RS08KA2CSCR
廠商： Freescale Semiconductor
文件頁數(shù)： 78/136頁
文件大?。?/td> 0K
描述： IC MCU 8BIT 2K FLASH 8-SOIC
產(chǎn)品培訓模塊： Mechatronics
USBSpyder08 Discovery Kit
RS08KA2 Low-End Microcontroller Series
MC9RS08KA8 Microcontroller
標準包裝： 1
系列： RS08
核心處理器： RS08
芯體尺寸： 8-位
速度： 10MHz
外圍設備： LVD，POR，WDT
輸入/輸出數(shù)： 4
程序存儲器容量： 2KB（2K x 8）
程序存儲器類型： 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： 8-SOIC（0.154"，3.90mm 寬）
包裝： 標準包裝
其它名稱： MC9RS08KA2CSCRDKR
Chapter 6 Parallel Input/Output Control
MC9RS08KA2 Series Data Sheet, Rev. 4
46
Freescale Semiconductor
When a shared digital function is enabled for a pin, the output buffer is controlled by the shared function.
However, the data direction register bit will continue to control the source for reads of the port data register.
When a shared analog function is enabled for a pin, both the input and output buffers are disabled. A value
of 0 is read for any port data bit where the bit is an input (PTADDn = 0) and the input buffer is disabled.
In general, whenever a pin is shared with both an alternative digital function and an analog function, the
analog function has priority such that if both the digital and analog functions are enabled, the analog
function controls the pin.
It is a good programming practice to write to the port data register before changing the direction of a port
pin to become an output. This ensures that the pin will not be driven temporarily with an old data value
that happened to be in the port data register.
Associated with the parallel I/O ports is a set of registers located in the high page register space that operate
independently of the parallel I/O registers. These registers are used to control pullup/pulldown and slew
rate for the pins. See Section 6.3, “Pin Control Registers” for more information.
6.1
Pin Behavior in Low-Power Modes
In wait and stop modes, all pin states are maintained because internal logic stays powered up. Upon
recovery, all pin functions are the same as before entering stop.
6.2
Parallel I/O Registers
This section provides information about the registers associated with the parallel I/O ports. The parallel
I/O registers are located within the $001F memory boundary of the memory map, so that short and direct
addressing mode instructions can be used.
Refer to tables in Chapter 4, “Memory,” for the absolute address assignments for all parallel I/O. This
section refers to registers and control bits only by their names. A Freescale Semiconductor-provided
equate or header file normally is used to translate these names into the appropriate absolute addresses.
6.2.1
Port A Registers
Port A parallel I/O function is controlled by the data and data direction registers described in this section.
76
54
321
0
R
00
PTAD2
W
Reset:
000
00
000
Figure 6-2. Port A Data Register (PTAD)
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相關代理商/技術參數(shù)
參數(shù)描述
MC9RS08KA2DB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC9RS08KA2PC 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC9RS08KA2SC 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC9RS08KA4 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MCU Block Diagram
MC9RS08KA4CPG 功能描述:8位微控制器 -MCU 9RS08KA8 16PDIP 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 最大時鐘頻率:50 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
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