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H8SX/1663 数据表(PDF) 666 Page - Renesas Technology Corp

部件名 H8SX/1663
功能描述  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
PDF  1158 Pages
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制造商  RENESAS [Renesas Technology Corp]
网页  http://www.renesas.com
标志 RENESAS - Renesas Technology Corp

H8SX/1663 数据表(HTML) 666 Page - Renesas Technology Corp

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Section 12 8-Bit Timers (TMR)
Rev.1.00 Jun. 07, 2006 Page 614 of 1102
REJ09B0294-0100
12.3.3
Time Constant Register B (TCORB)
TCORB is an 8-bit readable/writable register. TCORB_0 and TCORB_1 comprise a single 16-bit
register so they can be accessed together by a word transfer instruction. TCORB is continually
compared with the value in TCNT. When a match is detected, the corresponding CMFB flag in
TCSR is set to 1. Note however that comparison is disabled during the T2 state of a TCORB write
cycle. The timer output from the TMO pin can be freely controlled by this compare match signal
(compare match B) and the settings of bits OS3 and OS2 in TCSR. TCORB is initialized to H'FF.
7
1
R/W
6
1
R/W
5
1
R/W
4
1
R/W
3
1
R/W
2
1
R/W
1
1
R/W
0
1
R/W
7
1
R/W
6
1
R/W
5
1
R/W
4
1
R/W
3
1
R/W
2
1
R/W
1
1
R/W
0
1
R/W
TCORB_0
TCORB_1
Bit
Bit Name
Initial Value
R/W
12.3.4
Timer Control Register (TCR)
TCR selects the TCNT clock source and the condition for clearing TCNT, and enables/disables
interrupt requests.
7
CMIEB
0
R/W
6
CMIEA
0
R/W
5
OVIE
0
R/W
4
CCLR1
0
R/W
3
CCLR0
0
R/W
2
CKS2
0
R/W
1
CKS1
0
R/W
0
CKS0
0
R/W
Bit
Bit Name
Initial Value
R/W
Bit
Bit Name
Initial
Value
R/W
Description
7
CMIEB
0
R/W
Compare Match Interrupt Enable B
Selects whether CMFB interrupt requests (CMIB) are
enabled or disabled when the CMFB flag in TCSR is set
to 1. *
2
0: CMFB interrupt requests (CMIB) are disabled
1: CMFB interrupt requests (CMIB) are enabled



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