参数资料
型号: MC68HC705P6ADW
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO28
封装: SOIC-28
文件页数: 111/130页
文件大小: 1541K
代理商: MC68HC705P6ADW
Analog Subsystem
A/D Status and Control Register (ADSC)
MC68HC705P6A — Rev. 2.0
Advance Information
MOTOROLA
Analog Subsystem
81
obtained. See 9.3.2 Reference Voltage (VREFH) for more
information.
ADON — A/D Subsystem On
When the A/D subsystem is turned on (ADON = 1), it requires a time,
tADON, to stabilize before accurate conversion results can be attained.
CH2–CH0 — Channel Select Bits
CH2, CH1, and CH0 form a 3-bit field which is used to select an input
to the A/D converter. Channels 0–3 correspond to port C input pins
PC6–PC3. Channels 4–6 are used for reference measurements.
Channel 7 is reserved. If a conversion is attempted with channel 7
selected, the result will be $00. Table 9-1 lists the inputs selected by
bits CH0-CH3.
If the ADON bit is set and an input from channels 0–4 is selected, the
corresponding port C pin’s DDR bit will be cleared (making that port
C pin an input). If the port C data register is read while the A/D is on
and one of the shared input channels is selected using bit CH0–CH2,
the corresponding port C pin will read as a logic 0. The remaining port
C pins will read normally. To digitally read a port C pin, the A/D
subsystem must be disabled (ADON = 0), or input channels 5–7 must
be selected.
Table 9-1. A/D Multiplexer Input
Channel Assignments
Channel
Signal
0AD0 — port C, bit 6
1AD1 — port C, bit 5
2AD2 — port C, bit 4
3AD3 — port C, bit 3
4
VREFH — port C, bit 7
5
(VREFH + VSS)/2
6
VSS
7
Reserved for factory test
相关PDF资料
PDF描述
MC68HCP11E1CFU2 8-BIT, 2 MHz, MICROCONTROLLER, PQFP64
MC68030FE16C 32-BIT, MICROPROCESSOR, CQCC132
MPC603ERX200LX 32-BIT, 200 MHz, RISC PROCESSOR, CBGA255
MPC8241LZP200B 32-BIT, 200 MHz, RISC PROCESSOR, PBGA357
MSP430F5508IRGC 16-BIT, FLASH, 25 MHz, RISC MICROCONTROLLER, PQCC64
相关代理商/技术参数
参数描述
MC68HC705P6AMDW 功能描述:IC MCU 4.6K OTP 2.1MHZ 28-SOIC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN,SCI,SPI 外围设备:POR,PWM,温度传感器,WDT 输入/输出数:21 程序存储器容量:40KB(20K x 16) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HC705P6AMP 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705P6CDW 制造商:Motorola Inc 功能描述:
MC68HC705P6CP 制造商:Freescale Semiconductor 功能描述: 制造商:Motorola Inc 功能描述:
MC68HC705P6ECDW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述: