
10
10-16
32170/32174 Group User's Manual (Rev. 2.1)
MULTIJUNCTION TIMERS
10.2 Common Units of Multijunction Timer
The clock bus/input-output bus control unit has the following registers:
Clock Bus & Input Event Bus Control Register (CKIEBCR)
Output Event Bus Control Register (OEBCR)
s Clock Bus & Input Event Bus Control Register (CKIEBCR) <Address: H'0080 0201>
D8
9
101112
1314
D15
IEB3S
IEB2S
IEB1S
IEB0S
CKB2S
<When reset : H'00>
D
Bit Name
Function
R
W
8, 9
IEB3S
0X : Selects external input 3 (TIN3)
(input event bus 3 input selection)
10 : Selects output event bus 2
11 : Selects TIO7 output
10, 11
IEB2S
00 : Selects external input 0 (TIN0)
(input event bus 2 input selection)
01 : Selects external input 2 (TIN2)
1X : Selects external input 4 (TIN4)
12
IEB1S
0 : Selects external input 5 (TIN5)
(input event bus 1 input selection)
1 : Selects TIO6 output
13
IEB0S
0 : Selects external input 6 (TIN6)
(input event bus 0 input selection)
1 : Selects TIO5 output
14
No functions assigned
0
—
15
CKB2S
0 : Selects prescaler 2
(Clock Bus 2 input selection)
1 : Selects external clock 3 (TCLK3)
The register CKIEBCR is used to select the clock source (external input or prescaler) supplied to
the clock bus and the count enable/capture signal (external input or output event bus) supplied to
the input event bus.