參數(shù)資料
型號(hào): PC9RS08KA2DWE
廠商: Freescale Semiconductor
文件頁(yè)數(shù): 78/136頁(yè)
文件大?。?/td> 0K
描述: MCU 8BIT 2KB FLASH RS08 8-SOIC
標(biāo)準(zhǔn)包裝: 98
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): 4
程序存儲(chǔ)器容量: 2KB(2K x 8)
程序存儲(chǔ)器類(lèi)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: 0°C ~ 70°C
封裝/外殼: 8-SOIC(0.209",5.30mm 寬)
包裝: 管件
配用: DEMO9RS08KA2-ND - DEMO BOARD FOR 9RS08KA2
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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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PC9RS08KA2FPE 功能描述:MCU 8BIT 2KB FLASH RS08 6-VDFN RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:RS08 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:8KB(8K x 8) 程序存儲(chǔ)器類(lèi)型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱(chēng):864285
PC9RS08KA2PAE 功能描述:MCU 8BIT 2KB FLASH RS08 8-DIP RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:RS08 標(biāo)準(zhǔn)包裝:1 系列:87C 核心處理器:MCS 51 芯體尺寸:8-位 速度:16MHz 連通性:SIO 外圍設(shè)備:- 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:8KB(8K x 8) 程序存儲(chǔ)器類(lèi)型:OTP EEPROM 大小:- RAM 容量:256 x 8 電壓 - 電源 (Vcc/Vdd):4 V ~ 6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:外部 工作溫度:0°C ~ 70°C 封裝/外殼:44-DIP 包裝:管件 其它名稱(chēng):864285
PC9RS08KA8CWJ 制造商:Freescale Semiconductor 功能描述:
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