MULTIJUNCTION TIMERS
10.2 Common Units of Multijunction Timers
10
TOP8,9 Interrupt Request Mask & Status Register (TOP89IMS)
<Address: H’0080 0233>
b8
9
0
10
11
12
0
13
0
14
b15
TOPIS9 TOPIS8
TOPIM9 TOPIM8
0
0
0
0
0
<After reset: H’00>
b
Bit Name
No function assigned. Fix to "0".
Function
R
0
W
0
0, 1
2
TOPIS9 (TOP9 interrupt request status bit)
TOPIS8 (TOP8 interrupt request status bit)
No function assigned. Fix to "0".
0: Interrupt not requested
1: Interrupt requested
R(Note 1)
3
4, 5
6
0
0
TOPIM9 (TOP9 interrupt request mask bit)
TOPIM8 (TOP8 interrupt request mask bit)
0: Enable interrupt request
R
W
7
1: Mask (disable) interrupt request
Note 1: Only writing "0" is effective. Writing "1" has no effect; the bit retains the value it had before the write.
Note: • TOP10 has only one interrupt source in the interrupt group, so that its status and mask registers are nonexistent in the MJT
interrupt control registers. (They are controlled directly by the Interrupt Controller.)
TOP89IMS <H'0080 0233>
TOP9udf
2-source inputs
TOPIS9
F/F
Data bus
b10
b14
TOP8,9 output interrupt request
IRQ6
TOPIM9
F/F
(Level)
TOP8udf
b11
TOPIS8
F/F
TOPIM8
F/F
b15
Figure 10.2.7 Block Diagram of TOP8,9 Output Interrupt Request
32180 Group User’s Manual (Rev.1.0)
10-42
RENESAS [ RENESAS TECHNOLOGY CORP ]
