参数资料
型号: ADUC843BCPZ8-3
厂商: Analog Devices Inc
文件页数: 31/88页
文件大小: 0K
描述: IC MCU FLASH 12BIT ADC 56LFCSP
标准包装: 1
系列: MicroConverter® ADuC8xx
核心处理器: 8052
芯体尺寸: 8-位
速度: 8.38MHz
连通性: I²C,SPI,UART/USART
外围设备: DMA,PSM,PWM,温度传感器,WDT
输入/输出数: 32
程序存储器容量: 8KB(8K x 8)
程序存储器类型: 闪存
RAM 容量: 2.25K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.6 V
数据转换器: A/D 8x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 56-VFQFN 裸露焊盘,CSP
包装: 托盘
ADuC841/ADuC842/ADuC843
Rev. 0 | Page 37 of 88
CFG841
ADuC841 Config SFR
SFR Address
AFH
Power-On Default
10H1
Bit Addressable
No
Table 14. CFG841 SFR Bit Designations
Bit No.
Name
Description
7
EXSP
Extended SP Enable.
When set to 1 by the user, the stack rolls over from SPH/SP = 00FFH to 0100H.
When set to 0 by the user, the stack rolls over from SP = FFH to SP = 00H.
6
PWPO
PWM Pin Out Selection.
Set to 1 by the user to select P3.4 and P3.3 as the PWM output pins.
Set to 0 by the user to select P2.6 and P2.7 as the PWM output pins.
5
DBUF
DAC Output Buffer.
Set to 1 by the user to bypass the DAC output buffer.
Set to 0 by the user to enable the DAC output buffer.
4
EPM2
Flash/EE Controller and PWM Clock Frequency Configuration Bits.
Frequency should be configured such that FOSC/Divide Factor = 32 kHz + 50%.
3
2
EPM1
EPM0
EPM2
EPM1
EPM0
Divide Factor
0
32
0
1
64
0
1
0
128
0
1
256
1
0
512
1
0
1
1024
1
MSPI
Set to 1 by the user to move the SPI functionality of MISO, MOSI, and SCLOCK to P3.3, P3.4, and P3.5,
respectively.
Set to 0 by the user to leave the SPI functionality as usual on MISO, MOSI, and SCLOCK pins.
0
XRAMEN
XRAM Enable Bit.
When set to 1 by the user, the internal XRAM is mapped into the lower two kBytes of the external address
space.
When set to 0 by the user, the internal XRAM is not accessible, and the external data memory is mapped into
the lower two kBytes of external data memory.
1 Note that the Flash/EE controller bits EPM2, EPM1, EPM0 are set to their correct values depending on the crystal frequency at power-up. The user should not modify
these bits so all instructions to the CFG841 register should use the ORL, XRL, or ANL instructions. Value of 10H is for 11.0592 MHz crystal.
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