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Chapter 11
16-bit Timer/Event Counter T
User’s Manual U16580EE3V1UD00
(a) Up/down count selection specification (TTnCTL2 register bits TTnUDS1, TTnUDS0)
Counter up/down is judged according to the settings of bits TTnUDS1 and TTnUDS0, and the
phases input from pins TENCTn0 and TENCTn1.
Bits TTnUDS1 and TTnUDS0 are valid only in the encoder compare mode.
<1> TTnCTL2: TTnUDS1, 0 = 00B (count judgment mode 1)
Operation example:
TTnIOC3: TTnEIS3 to 2
TENCTn1 pin input
Edge detection specification invalid
TTnIOC3: TTnEIS1 to 0 = 10B
TENCTn0 pin input
Rising edge detection
Figure 11-35:
Encoder Count Function Up/Down Count Selection Specification Timings (1/6)
(a) Timing 1
Remarks: 1.
Counting is performed when the edges of the TENCTn0/TENCTn1 pin inputs overlap.
2.
n = 0, 1
A Phase (Pin TENCTn0)
B Phase (Pin TENCTn1)
Count
Rising edge
High level
Down
Falling edge
Both edges
Rising edge
Low level
Up
Falling edge
Both edges
TENCTn0
TENCTn1
0007
0006
0005
0004
0005
0006
0007
Counter
Down count
Up count
Содержание MuPD70F3187
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Страница 192: ...192 Chapter 5 Memory Access Control Function μPD70F3187 only User s Manual U16580EE3V1UD00 MEMO ...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
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Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
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Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
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