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HC05 Datasheet, PDF (125/232 Pages) Motorola, Inc – High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit | |||
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8
PULSE LENGTH D/A CONVERTERS
The pulse length D/A converter (PLM) system works in conjunction with the timer to execute two
8-bit D/A conversions, with a choice of two repetition rates. (See Figure 8-1.)
Data bus
8
PLMA
register
8
PLMB
register
âAâ register
buffer
âBâ register
buffer
8
PLMA
D/A
pin
âAâ
comparator
âBâ
comparator
R
Latch
S
R
Latch
S
Zero detector
SFA
bit
8
âAâ
multiplexer
16
Zero detector
8
âBâ
SFB
multiplexer
bit
16
Timer bus
Figure 8-1 PLM system block diagram
PLMB
D/A
pin
From timer
MC68HC05X16
Rev. 1
PULSE LENGTH D/A CONVERTERS
MOTOROLA
8-1
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