R5S72011 RENESAS [Renesas Technology Corp], R5S72011 Datasheet - Page 584
R5S72011
Manufacturer Part Number
R5S72011
Description
32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.R5S72011.pdf
(1196 pages)
- Current page: 584 of 1196
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Section 12 Multi-Function Timer Pulse Unit 2 (MTU2)
12.7.11 Contention between Buffer Register Write and Input Capture
If an input capture signal is generated in the T2 state of a buffer register write cycle, the buffer
operation takes precedence and the write to the buffer register is not performed.
Figure 12.118 shows the timing in this case.
12.7.12 TCNT_2 Write and Overflow/Underflow Contention in Cascade Connection
With timer counters TCNT_1 and TCNT_2 in a cascade connection, when a contention occurs
during TCNT_1 count (during a TCNT_2 overflow/underflow) in the T2 state of the TCNT_2
write cycle, the write to TCNT_2 is conducted, and the TCNT_1 count signal is disabled. At this
point, if there is match with TGRA_1 and the TCNT_1 value, a compare signal is issued.
Furthermore, when the TCNT_1 count clock is selected as the input capture source of channel 0,
TGRA_0 to TGRD_0 carry out the input capture operation. In addition, when the compare
match/input capture is selected as the input capture source of TGRB_1, TGRB_1 carries out input
capture operation. The timing is shown in figure 12.119.
For cascade connections, be sure to synchronize settings for channels 1 and 2 when setting TCNT
clearing.
Rev. 2.00 Sep. 07, 2007 Page 556 of 1164
REJ09B0321-0200
Figure 12.118 Contention between Buffer Register Write and Input Capture
Pφ
Address
Write signal
Input capture
signal
TCNT
TGR
Buffer register
Buffer register write cycle
M
Buffer register
T1
address
N
T2
M
N
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