參數(shù)資料
型號: T89C51IC2-SLSIL
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-bit Microcontroller with Flash and I2C Interface
中文描述: 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 139/170頁
文件大小: 1927K
代理商: T89C51IC2-SLSIL
139
A/T89C51CC01
4129L–CAN–08/05
Table 110.
ADCLK Register
ADCLK (S:F2h)
ADC Clock Prescaler
Reset Value = XXX0 0000b
Table 111.
ADDH Register
ADDH (S:F5h Read Only)
ADC Data High Byte Register
Reset Value = 00h
Table 112.
ADDL Register
ADDL (S:F4h Read Only)
ADC Data Low Byte Register
Reset Value = 00h
7
6
5
4
3
2
1
0
-
-
-
PRS 4
PRS 3
PRS 2
PRS 1
PRS 0
Bit
Number
Bit
Mnemonic
Description
7-5
-
Reserved
The value read from these bits are indeterminate. Do not set these bits.
4-0
PRS4:0
Clock Prescaler
f
ADC
=
fcpu clock/ (4 (or 2 in X2 mode)* PRS )
7
6
5
4
3
2
1
0
ADAT 9
ADAT 8
ADAT 7
ADAT 6
ADAT 5
ADAT 4
ADAT 3
ADAT 2
Bit
Number
Bit
Mnemonic
Description
7-0
ADAT9:2
ADC result
bits 9-2
7
6
5
4
3
2
1
0
-
-
-
-
-
-
ADAT 1
ADAT 0
Bit
Number
Bit
Mnemonic
Description
7-2
-
Reserved
The value read from these bits are indeterminate. Do not set these bits.
1-0
ADAT1:0
ADC result
bits 1-0
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