MULTIJUNCTION TIMERS
10.2 Common Units of Multijunction Timers
10
The Clock Bus and Input/Output Event Bus Control Unit has the following registers:
• Clock Bus & Input Event Bus Control Register (CKIEBCR)
• Output Event Bus Control Register (OEBCR)
Clock Bus & Input Event Bus Control Register (CKIEBCR)
<Address: H’0080 0201>
b8
0
9
0
10
0
11
0
12
IEB1S
0
13
IEB0S
0
14
0
b15
CKB2S
0
IEB3S
IEB2S
<After reset: H’00>
b
Bit Name
IEB3S
Function
R
R
W
W
8, 9
00: Select external input 3 (TIN3)
01: – ditto –
Input event bus 3 input select bit
10: Select output event bus 2
11: Select TIO7 output
10, 11
IEB2S
00: Select external input 0 (TIN0)
01: Select external input 2 (TIN2)
10: Select external input 4 (TIN4)
11: – ditto –
R
W
Input event bus 2 input select bit
12
13
IEB1S
0: Select external input 5 (TIN5)
1: Select TIO6 output
R
R
W
W
Input event bus 1 input select bit
IEB0S
0: Select external input 6 (TIN6)
1: Select TIO5 output
Input event bus 0 input select bit
14
15
No function assigned. Fix to "0".
0
0
CKB2S
0: Select prescaler 2
R
W
Clock bus 2 input select bit
1: Select external clock 3 (TCLK3)
The CKIEBCR register 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.
32180 Group User’s Manual (Rev.1.0)
10-16
RENESAS [ RENESAS TECHNOLOGY CORP ]
