Fujitsu MB90390 Series, Hardware Manual, Page: 203 / 740

175
CHAPTER 10 I/O PORTS
10.2.3 Analog Input Enable Register
This register controls the port 6 and port B pins as described below:
0: Port input/output mode
1: Analog input mode
If an external pin is used as an analog input for the A/D converter, the corresponding bit
should be set to "1".
■
Analog Input Enable Registers
Figure 10.2-4 shows the analog input enable register.
Figure 10.2-4 Analog Input Enable Registers (ADER1/ADER0)
Note:
If bit15 (ADSEL) is set to "0" the pins AN0 to AN7 (Port P60 to P67) are selected as inputs for the
A/D Converter. If this bit is set to "1" the pins AN8 to AN14 (Port PB0 to PB6) are selected as inputs
for the A/D Converter.
Address:
00000D
00000C
H
H
ADER1/ADER0
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W R/W
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Initial value:
ADSEL ADE14 ADE13 ADE12 ADE11 ADE10 ADE9 ADE8 ADE7 ADE6 ADE5 ADE4 ADE3 ADE2 ADE1 ADE0
bit