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HARDWARE CONFIGURATION
2-79
A/D CONVERTER
[Bit 4] ADCK: External input clock pulse select bit
Bit 4 is used to select the clock pulse for starting by the external input clock
pulse.
No change
Operation started (when EXT bit (bit 1) of ADC2 is 1)
0
1
[Bit 3] ADIE: Interrupt specification bit
This bit is used to specify interrupt enable/disable.
Interrupt disabled
Interrupt enabled
0
1
[Bit 2] ADMD: Function-switching bit
This bit is used to switch the A/D mode and sense mode.
A/D mode
Sense mode
0
1
[Bit 1] EXT: Start type select bit
Bit 1 is used to select the conversion start type.
Starts A/D conversion with AD bit (bit 0) of ADC1
0
Starts A/D conversion at rising edge of clock selected by
ADCK bit (bit 4) of ADC2
1
[Bit 0] TEST: Test bit
This bit is used only for testing. Always write 1 at this bit. 1 is always read.
(3) A/D data registers H and L (ADDH and ADDL)
These registers are used to store the results of A/D conversion in A/D mode
and write the comparison set value in the Sense mode. Two upper bits and
eight lower bits are assigned to the ADDH and ADDL, respectively.
ADC1
ADC2
ADDH
ADDL
Address: 001E
H
Address: 001F
H
Address: 0020
H
Address: 0021
H
Address: 0020
H
Address: 0021
H
Initial value
000000XX
B
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
—
—
—
—
—
—
9
8
(R/W) (R/W)
7
6
5
4
3
2
1
0
(R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W)
Initial value
XXXXXXXX
B
Summary of Contents for F2MC-8L Series
Page 121: ...INSTRUCTIONS 4 7 4 5 F2MC 8L FAMILY INSTRUCTION MAP ...
Page 123: ...5 MASK OPTIONS ...
Page 125: ...APPENDIX ...