Renesas Hitachi H8S/2191, Руководство по оборудованию, Страница: 363 / 1065

Rev. 2.0, 11/00, page 336 of 1037
Bit 0: Selection of the Capture Signals of the TMRU-1 (CPS)
In combination with the LAT bit (Bit 7) of the TMR2, this bit works to select the capture signals
of the TMRU-1. This bit becomes valid when the LAT bit is being set to 1. It will also become
valid when the RLD/CAP bit (Bit 1) is being set to 1. Nonetheless, it will be invalid when the
RLD/CAP bit (Bit 1) is being set to 0.
Bit 0
CPS Description
0 Capture signals at the rising edge of the CFG (Initial value)
1 Capture signals at the edge of the IRQ3
16.2.2 Timer R Mode Register 2 (TMRM2)
0
0
1
0
R/(W)
*
2
0
R/W
3
0
4
0
R/W
5
0
6
0
7
R/(W)
*
R/W R/W
PS10
R/W
PS11
0
R/W
LAT PS31 PS30 CP/SLM CAPF SLW
Bit :
Initial value :
R/W :
The timer R mode register 2 (TMRM2) is an 8-bit read/write register which works to identify the
operation mode and to control the slow tracking processing.
When reset, the TMRM2 is initialized to H'00.
Note: * The CAPF bit and the SLW bit, respectively, works to latch the interrupt causes and
writing 0 only is valid. Consequently, when these bits are being set to 1, respective
interrupt requests will not be issued. Therefore, it is necessary to check these bits
during the course of the interrupt processing routine to have them cleared.
Also, priority is given to the set and, when an interrupt cause occur while the a
clearing command (BCLR, MOV, etc.) is being executed, the CAPF bit and the SLW
bit will not be cleared respectively and it thus becomes necessary to pay attention to
the clearing timing.