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Chapter 11
16-bit Timer/Event Counter T
User’s Manual U16580EE3V1UD00
(c) Rewrite timing of bit TTnECC
When TTnCE = 0 and TTnECC = 0, setting TTnCE = 1 causes the setting value of the TTnTCW
register to be loaded to the counter. Perform rewrite of the TTnECC bit after the operation clock
has become valid (after several clocks: TBD), following setting of TTnCE = 1.
If bit TTnECC is rewritten before the operation clock becomes valid, counting starts from FFFFH
without loading the setting value of the TTnTCW register to the counter.
Figure 11-37:
Counter Hold through Bit TTnECC Timings (3/5)
(e) Basic Timing in Encoder Compare Mode (1)
< Register setting conditions>
•
TTnCTL0: TTnMD3 to 0 = 1000B
Encoder compare mode
•
TTnCTL1: TTnUDS1, 0 = 00B
Judgment of up/down count with count judgment mode 1
•
TTnCTL1: TTnECM1, 0 = 01B
Counter clear upon match between counter value and
TTnCCR0 buffer register
•
TTnCTL1: TTnLDE = 1
Loading of setting value of TTnCCR0 register (p) upon
underflow occurrence
•
TTnIOC3: TTnEIS1, 0 = 01B
Detection of rising edge of TENCTn0 and TENCTn1 pin
inputs
•
TTnIOC3: TTnSCE = 0,
TTnECS1-0 = 00B
Valid edge detection clear (no edge specified)
Since TTnUDS1, 0 and TTnEIS1, 0 that control the count operation are set to 00B and 01B
(rising edge detection), respectively, the counter is operated through detection of the phase of pin
TENCTn1 upon detection of the rising edge of TENCTn0 pin input. A compare match interrupt
(INTTTnCC0) is output upon a match between the counter value and the TTnCCR0 compare reg-
ister (p). At this time, the counter is cleared to 0000H if the next count operation is up count.
A compare match interrupt (INTTTnCC1) is output upon a match between the counter value and
the TTnCCR1 buffer register (q). The counter is not cleared upon a match between the counter
value and the TTnCCR1 register. If underflow occurs when TTnLDE = 1 is set, the setting value of
the TTnCCR0 buffer register (m) is loaded to the counter. A count operation is possible between
0000H and the setting value of the TTnCCR0 register by setting TTnLDE = 1 and TTnECM0 = 1.
Remark:
n = 0, 1
p
TTnCCR0
p
TTnESF
TTnEUF
q
TTnCCR1
q
INTTTnCC0
INTTTnCC1
TENCTn0
TENCTn1
Encoder
counter
Count clear
Load to counter
Load to counter
Up count
Down count
Summary of Contents for MuPD70F3187
Page 6: ...6 Preface User s Manual U16580EE3V1UD00 ...
Page 16: ...16 User s Manual U16580EE3V1UD00 ...
Page 28: ...28 User s Manual U16580EE3V1UD00 ...
Page 32: ...32 User s Manual U16580EE3V1UD00 ...
Page 84: ...84 Chapter 2 Pin Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 144: ...144 Chapter 3 CPU Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO ...
Page 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00 ...
Page 969: ...969 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 MEMO ...
Page 970: ...970 Chapter 20 Port Functions User s Manual U16580EE3V1UD00 ...
Page 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO ...
Page 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO ...
Page 1006: ...1006 Chapter 24 Flash Memory User s Manual U16580EE3V1UD00 MEMO ...
Page 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO ...
Page 1046: ...1046 Appendix A Index User s Manual U16580EE3V1UD00 MEMO ...
Page 1052: ...1052 User s Manual U16580EE3V1UD00 ...
Page 1053: ......