參數(shù)資料
型號: M30100M3T-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP32
封裝: 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁數(shù): 22/164頁
文件大小: 3302K
代理商: M30100M3T-XXXFP
Under
development
Tentative Specifications REV.E1
Specifications in this manual are tentative and subject to change.
Mitsubishi microcomputers
M30100/M30102 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
A-D Converter
117
External op-amp
Analog
input
AN0
AN7
AN1
AN2
AN3
AN4
AN5
AN6
ANEX1
ANEX0
Resistance ladder
Successive conversion register
Comparator
AN11
AN8
AN9
AN10
ADGSEL0=1
ADGSEL0=0
Figure 1.16.6. Example of external op-amp connection mode
Sample and hold
Sample and hold is selected by setting bit 0 of the A-D control register 2 (address 00D416) to “1”.
When sample and hold is selected, the rate of conversion of each pin increases. As a result, a 28 AD
cycle is achieved with 8-bit resolution and 33 AD with 10-bit resolution. Sample and hold can be
selected in all modes. However, in all modes, be sure to specify before starting A-D conversion
whether sample and hold is to be used.
Extended analog input pins
In one-shot mode and repeat mode, the input via the extended analog input pins ANEX0 and ANEX1
can also be converted from analog to digital.
When bit 6 of the A-D control register 1 (address 00D716) is “1” and bit 7 is “0”, input via ANEX0 is
converted from analog to digital.
When bit 6 of the A-D control register 1 (address 00D716) is “0” and bit 7 is “1”, input via ANEX1 is
converted from analog to digital.
External operation amp connection mode
In this mode, multiple external analog inputs via the extended analog input pins, ANEX0 and ANEX1,
can be amplified together by just one operation amp and used as the input for A-D conversion.
When bit 6 of the A-D control register 1 (address 00D716) is “1” and bit 7 is “1”, input via AN0 to AN11
is output from ANEX0. The input from ANEX1 is converted from analog to digital and the result stored
in the A-D register. The speed of A-D conversion depends on the response of the external operation
amp. Do not connect the ANEX0 and ANEX1 pins directly. Figure 1.16.6 is an example of how to
connect the pins in external operation amp mode.
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