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Section 11
8-Bit Timers (TMR)
Rev.2.00 Jun. 28, 2007 Page 419 of 666
REJ09B0311-0200
11.3.5
Timer Counter Control Register (TCCR)
TCCR selects the TCNT internal clock source and controls external reset input.
7
0
R/W
6
0
R/W
5
0
R/W
4
0
R/W
3
TMRIS
0
R/W
2
0
R/W
1
ICKS1
0
R/W
0
ICKS0
0
R/W
Bit
Bit Name
Initial Value
R/W
Bit Bit
Name
Initial
Value R/W Description
7 to 4
0 R/W
Reserved
These bits are always read as 0. The write value should
always be 0.
3
TMRIS
0
R/W
Timer Reset Input Select
Selects an external reset input when the CCLR1 and
CCLR0 bits in TCR are B'11.
0: Cleared at rising edge of the external reset
1: Cleared when the external reset is high
2
0 R/W
Reserved
This bit is always read as 0. The write value should
always be 0
1
0
ICKS1
ICKS0
0
0
R/W
R/W
Internal Clock Select 1 and 0
These bits in combination with bits CKS2 to CKS0 in TCR
select the internal clock. See table 11.2.
Summary of Contents for H8SX/1650
Page 2: ...Rev 2 00 Jun 28 2007 Page ii of xxii...
Page 106: ...Section 4 Exception Handling Rev 2 00 Jun 28 2007 Page 84 of 666 REJ09B0311 0200...
Page 142: ...Section 5 Interrupt Controller Rev 2 00 Jun 28 2007 Page 120 of 666 REJ09B0311 0200...
Page 326: ...Section 8 I O Ports Rev 2 00 Jun 28 2007 Page 304 of 666 REJ09B0311 0200...
Page 470: ...Section 12 Watchdog Timer WDT Rev 2 00 Jun 28 2007 Page 448 of 666 REJ09B0311 0200...
Page 566: ...Section 14 A D Converter Rev 2 00 Jun 28 2007 Page 544 of 666 REJ09B0311 0200...
Page 574: ...Section 16 RAM Rev 2 00 Jun 28 2007 Page 552 of 666 REJ09B0311 0200...
Page 584: ...Section 17 Clock Pulse Generator Rev 2 00 Jun 28 2007 Page 562 of 666 REJ09B0311 0200...
Page 638: ...Section 19 List of Registers Rev 2 00 Jun 28 2007 Page 616 of 666 REJ09B0311 0200...
Page 668: ...Section 20 Electrical Characteristics Rev 2 00 Jun 28 2007 Page 646 of 666 REJ09B0311 0200...
Page 676: ...Appendix Rev 2 00 Jun 28 2007 Page 654 of 666 REJ09B0311 0200...
Page 688: ...Rev 2 00 Jun 28 2007 Page 666 of 666 REJ09B0311 0200...
Page 691: ......
Page 692: ...H8SX 1650 Group Hardware Manual...