Count Source - Renesas 7700 FAMILY User Manual

TIMER A
5.5 One-shot pulse mode

5.5.2 Count source

In the one-shot pulse mode, the count source select bits (bits 6 and 7 at addresses 56
the count source. Table 5.5.2 lists the count source frequency.
Table 5.5.2 Count source frequency
Count source
select bits
b6
b7
0 0
0 1
0
1
1
1
Clock source for peripheral devices select bit : bit 2 at address 5F
5–34
f(X
Clock source for peripheral
devices select bit = "0"
Count source
Frequency
f
6.25 MHz
4
f
781.25 kHz
32
f
195.3125 kHz
128
f
24.4141 kHz
1024
7751 Group User's Manual
) = 25 MHz
IN
Clock source for peripheral
devices select bit = "1"
Count source
Frequency
f
12.5 MHz
2
f
1.5625 MHz
16
f
390.625 kHz
64
f
48.8281 kHz
512
f(X ) = 40 MHz
IN
Clock source for peripheral
devices select bit = "0"
Count source
f
4
f
32
f
128
f
1024
16
to 5A ) select
16 16
Frequency
10 MHz
1.25 MHz
312.5 kHz
39.0625 kHz