参数资料
型号: MC705L16CFUE
厂商: Freescale Semiconductor
文件页数: 98/146页
文件大小: 0K
描述: IC MCU 8BIT EPROM 80-QFP
标准包装: 84
系列: HC05
核心处理器: HC05
芯体尺寸: 8-位
速度: 2.1MHz
连通性: SPI
外围设备: LCD,POR,WDT
输入/输出数: 16
程序存储器容量: 16KB(16K x 8)
程序存储器类型: OTP
RAM 容量: 512 x 8
电压 - 电源 (Vcc/Vdd): 3 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 80-QFP
包装: 托盘
Port D
MC68HC05L16 MC68HC705L16 Data Sheet, Rev. 4.1
Freescale Semiconductor
55
6.4.2 Port C Data Direction Register
Read
Anytime when OPTM = 1
Write
Anytime when OPTM = 1
Reset
Cleared to $00; all general-purpose I/O configured for input
DDRCx — Port C Data Direction Register Bit x
The timer and SSPI force the I/O state to be an output for each port C line associated with an enabled
output function such as SDO and EVO. For these cases, the data direction bits will not change.
0 = Configure I/O pin PCx to input
1 = Configure I/O pin PCx to output
6.5 Port D
Port D pins serve one of two basic functions depending on the MCU mode selected:
LCD frontplane and backplane driver outputs
General-purpose output pins
Since port D is an output-only port, there is no DDRD register. Instead of DDRD, port D MUX control
register (PDMUX) is used. Bits 7–4 of this register control the port/LCD muxing of port D bits 7–4,
respectively, on a bit-wide basis. These bits are cleared on reset, and writing a logic 1 to any bit will turn
that pin into a port output. This function is superseded by the PDH bit in the LCD control register. When
PDH is set, the upper four bits of port D become port outputs regardless of the state of the PDMUX bits.
On reset, all port D outputs are disconnected from the pins and the port D data latches are set to a logic 1.
The pin connections of the lower three bits of port D depend on the LCD duty selection by the DUTY1 and
DUTY0 bits in the LCDCR. When the LCD duty is not 1/4, the unused backplane driver(s) is (are) replaced
by the port D output pin(s) automatically.
If DWOMH bit or DWOML bit in the WOM1 register is set, the P-channel drivers of output buffers at the
upper four bits or lower three bits, respectively, are disabled (open-drain mode). These open-drain
controls do not apply to the pins which are configured as frontplane or backplane driver outputs.
Address:
Option Map — $0002
Bit 7
654321
Bit 0
Read:
DDRC7
DDRC6
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
Write:
Reset:
00000000
Figure 6-6. Port C Data Direction Register (DDRC)
相关PDF资料
PDF描述
MC705X32VFUE IC MCU 8BIT 32K FLASH 64-QFP
MC711P2CFNE3 IC MCU 8BIT 84-PLCC
MC7410VU450NE IC MPU RISC 32BIT 360-FCCBGA
MC7447AVU1333LB IC MPU RISC 32BIT 360-BGA
MC7448VS600ND IC MPU RISC 600MHZ 360-FCCLGA
相关代理商/技术参数
参数描述
MC705P6ACDWE 功能描述:8位微控制器 -MCU MCU 176 BYTES RAM A/D RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MC705P6ACDWE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
MC705P6ACDWER 功能描述:IC MCU 8BIT EPROM 28-SOIC RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 标准包装:1 系列:AVR® ATmega 核心处理器:AVR 芯体尺寸:8-位 速度:16MHz 连通性:I²C,SPI,UART/USART 外围设备:欠压检测/复位,POR,PWM,WDT 输入/输出数:32 程序存储器容量:32KB(16K x 16) 程序存储器类型:闪存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 电压 - 电源 (Vcc/Vdd):2.7 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:44-TQFP 包装:剪切带 (CT) 其它名称:ATMEGA324P-B15AZCT
MC705P6ACPE 功能描述:8位微控制器 -MCU HC705P6A 176 BYTES RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
MC705P6AMDWE 功能描述:8位微控制器 -MCU MCU 176 BYTES RAM EPP RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT