411
Bit:
15
14
13
12
11
10
9
8
ADDRn:
AD9
AD8
AD7
AD6
AD5
AD4
AD3
AD2
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R
R
R
R
R
R
Bit:
7
6
5
4
3
2
1
0
ADDRn:
AD1
AD0
—
—
—
—
—
—
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R
R
R
R
R
R
n = A–D
Table 14.3
Assignment of Data Registers to Analog Input Channels
Analog Input Channel
Group 0
Group 1
A/D Data Register
AN0
AN4
ADDRA
AN1
AN5
ADDRB
AN2
AN6
ADDRC
AN3
AN7
ADDRD
14.2.2
A/D Control/Status Register (ADCSR)
The A/D control/status register (ADCSR) is an 8-bit read/write register that controls the operation
of the A/D converter (mode selection, etc.). ADCSR is initialized to H'00 by a reset and in standby
mode.
Bit:
7
6
5
4
3
2
1
0
Bit name:
ADF
ADIE
ADST
SCAN
CKS
CH2
CH1
CH0
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/(W)
*
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Note:
*
Only 0 can be written, to clear the flag.
Содержание HD6417032
Страница 21: ......
Страница 35: ...xiv ...
Страница 85: ...50 ...
Страница 101: ...66 ...
Страница 129: ...94 ...
Страница 135: ...100 ...
Страница 343: ...308 ...
Страница 369: ...334 ...
Страница 383: ...348 ...
Страница 475: ...440 ...
Страница 525: ...490 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 18 Self Refresh ...
Страница 578: ...543 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 62 Self Refresh ...
Страница 689: ...654 ...