523
Chapter 11
16-bit Timer/Event Counter T
User’s Manual U16580EE3V1UD00
(5)
Counter clearing to 0000H through encoder clear input (pin TECRTn) (TTnIOC3 register bits
TTnSCE, TTnECS1, TTnECS0)
There are two methods to clear the counter to 0000H through TECRTn pin input, and encoder
clear input is controlled by bit TTnSCE. Bits TTnZCL, TTnBCL, TTnACL, TTnECS1, and
TTnECS0 are controlled by the setting of bit TTnSCE.
These clear methods are valid in the encoder compare mode.
<1> Method to clear counter to 0000H through detection of valid edge of TECRTn pin input
(TTnSCE = 0)
When TTnSCE = 0, the counter is cleared to 0000H in synchronization with the internal operation
clock upon detection of the valid edge set through TECRTn pin input edge detection specification.
At this time, an encoder clear interrupt (INTTTnEC) is output. When TTnSCE = 0, the setting of
bits TTnZCL, TTnBCL, and TTnACL are invalid.
Figure 11-36:
Counter Clearing to 0000H through Encoder Clear Input (pin TECRTn) Timings (1/4)
(a) When TTnSCE = 0, TTnECS1, 0 = 01B, TTnUDS = 11B are Set
Remark:
n = 0, 1
TTnSCE
TTnZCL
TTnBCL
TTnACL
TTnECS1, 0
Method
0
Invalid
Invalid
Invalid
√
<1>
1
√
√
√
Invalid
<2>
TENCTn0
TENCTn1
TECRTn
m
INTTTnEC
0
m + 1
1
2
Base clock
Count signal
Counter
Counter clear
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 ...
Страница 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Страница 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
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