MB90P663APFM View Datasheet(PDF) - Fujitsu
Part Name
Description
Manufacturer
MB90P663APFM Datasheet PDF : 84 Pages
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MB90660A Series
4. 10-bit, 8-channel A/D Converter (with 8-bit Resolution Mode)
This 10-bit, 8-channel A/D converter is used to convert analog input voltage to corresponding digital values. It
has the following features.
• Conversion time: 6.13 µs per channel (includes sample and hold time at 98 machine cycles/machine clock
of 16 MHz)
• Sample hold time: 3.75 µs per channel (60 machine cycles per machine clock of 16 MHz)
• RC-type sequential approximation conversion with sample and hold circuits
• 10-bit or 8-bit resolution
• Analog input can be selected from 8 channels
Single conversion mode : One channel selected for conversion
Scan conversion mode
: Consecutive multiple channels converted (programmable with max. eight
channels)
Repetitive conversion mode : Data on the specified channel is converted repeatedly
Stop conversion mode
: Once one channel is converted, operations stop and the device waits until
started again (conversion start can be synchronized)
• At the end of each A/D conversion, an interrupt request to the CPU can be generated. This interrupt can be
used to activate I2OS or transfer A/D conversion results to memory, making it useful when continuous
processing is desired.
• Conversion can be triggered by software, an external trigger (falling edge), and/or a timer (rising edge).
(1) Register Configuration
bit 15 14 13 12 11 10 9
8
A/DControl status register (upper)
Address : 00002DH
BUSY INT INTE PAUS STS1 STS0 STRT Reserved
Read/Write
Initial value
(R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (W) (–)
(0) (0) (0) (0) (0) (0) (0) (0)
bit 7
6
5
4
3
2
1
0
A/D Control status register (lower)
Address : 00002CH
MD1 MD0 ANS2 ANS1 ANS0 ANE2 ANE1 ANE0
Read/Write
Initial value
(R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W)
(0) (0) (0) (0) (0) (0) (0) (0)
bit 15 14 13 12 11 10 9
8
A/D Data register (upper)
Address : 00002FH
S10 –
–
–
–
– D9 D8
Read/Write
Initial value
(R/W) (R) (R) (R) (R) (R) (R) (R)
(0) (0) (0) (0) (0) (0) (X) (X)
bit 7
6
5
4
3
2
1
0
A/D Data register (lower)
Address : 00002EH
D7 D6 D5 D4 D3 D2 D1 D0
Read/Write
Initial value
(R) (R) (R) (R) (R) (R) (R) (R)
(X) (X) (X) (X) (X) (X) (X) (X)
ADCS
ADCS
ADCR
ADCR
35
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