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Section 9 Timers
Rev. 6.00 Sep 12, 2006 page 223 of 526
REJ09B0326-0600
Timer Control Register V1 (TCRV1)
Bit
7 6 5 4 3 2 1 0
TVEG1
TVEG0
TRGE
ICKS0
Initial
value 1 1 1 0 0 0 1 0
Read/Write
R/W R/W R/W
R/W
TCRV1 is an 8-bit read/write register that selects the valid edge at the TRGV pin, enables TRGV
input, and selects the clock input to TCNTV.
TCRV1 is initialized to H'E2 upon reset and in watch mode, subsleep mode, and subactive mode.
Bits 7 to 5
Reserved Bits:
Bit 7 to 5 are reserved; they are always read as 1, and cannot be
modified.
Bits 4 and 3
TRGV Input Edge Select (TVEG1, TVEG0):
Bits 4 and 3 select the TRGV input
edge.
Bit 4: TVEG1
Bit 3: TVEG0
Description
0
0
TRGV trigger input is disabled
(initial value)
1
Rising edge is selected
1
0
Falling edge is selected
1
Rising and falling edges are both selected
Bit 2
TRGV Input Enable (TRGE):
Bit 2 enables TCNTV counting to be triggered by input at
the TRGV pin, and enables TCNTV counting to be halted when TCNTV is cleared by compare
match. TCNTV stops counting when TRGE is set to 1, then starts counting when the edge selected
by bits TVEG1 and TVEG0 is input at the TRGV pin.
Bit 2: TRGE
Description
0
TCNTV counting is not triggered by input at the TRGV pin, and does not stop
when TCNTV is cleared by compare match
(initial value)
1
TCNTV counting is triggered by input at the TRGV pin, and stops when TCNTV
is cleared by compare match
Bit 1
Reserved Bit:
Bit 1 is reserved; it is always read as 1, and cannot be modified.
Bit 0
Internal Clock Select 0 (ICKS0):
Bit 0 and bits CKS2 to CKS0 in TCRV0 select the
TCNTV clock source. For details see section 9.4.2, Register Descriptions.
Содержание F-ZTAT H8/3642A Series
Страница 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Страница 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Страница 21: ...Rev 6 00 Sep 12 2006 page xix of xx Appendix E Product Code Lineup 522 Appendix F Package Dimensions 524 ...
Страница 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Страница 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Страница 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Страница 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Страница 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Страница 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Страница 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...