tmp89fm42 TOSHIBA Semiconductor CORPORATION, tmp89fm42 Datasheet - Page 66
tmp89fm42
Manufacturer Part Number
tmp89fm42
Description
8 Bit Microcontroller
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
1.TMP89FM42.pdf
(408 pages)
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3.3 Interrupt Enable Register (EIR)
3. Interrupt Control Circuit
RA003
Interrupt latch (ILL)
Interrupt latch (ILH)
Interrupt latch (ILE)
Interrupt latch (ILD)
(0x0FE0)
(0x0FE1)
(0x0FE2)
(0x0FE3)
ILH
ILE
ILD
ILL
Note 1: IL3 is a read-only register. Writing the register does not affect interrupt latch.
Note 2: In the main program, before manipulating an interrupt latch (IL), be sure to clear the interrupt master enable flag (IMF) to
Note 3: Do not clear IL with read-modify-write instructions such as bit operations.
Note 4: When a read instruction is executed on ILL, bits 0 to 2 are read as "0". Other unused bits are read as "0".
IL25 to IL4
"0" (Disable interrupt by DI instruction). Then set the IMF to "1" as required after operating the IL (Enable interrupt by EI
instruction).
In the interrupt service routine, the IMF becomes "0" automatically and need not be cleared to "0" normally. However, if
using multiple interrupt in the interrupt service routine, manipulate the IL before setting the IMF to "1".
Read/Write
Read/Write
Read/Write
Read/Write
Bit Symbol
Bit Symbol
Bit Symbol
Bit Symbol
After reset
After reset
After reset
After reset
Function
Function
Function
Function
IL3
Interrupt latch
INTTXD0
INTTXD1
INTSBI0/
INTSIO0
R/W
IL15
R/W
IL23
R/W
IL7
R
7
0
7
0
7
0
7
0
-
INTRXD0 /
INTRXD1
INTTCA0
INTSIO0
R/W
R/W
R/W
IL14
IL22
IL6
R
6
0
6
0
6
0
6
0
-
INTTC01
INTTCA1
INTTBT
R/W
IL13
R/W
IL21
R/W
IL5
R
5
0
5
0
5
0
5
0
-
Page 52
0:
1:
0:
1:
No interrupt request
Interrupt request
No interrupt request
Interrupt request
INTWUC
INTTC00
INT4
R/W
IL12
R/W
IL20
R/W
IL4
R
4
0
4
0
4
0
4
0
-
Read
INTWDT
INTRTC
INT3
R/W
IL19
R/W
IL11
IL3
R
R
3
0
3
0
3
0
3
0
-
INTADC
INT2
IL10
R/W
IL18
R/W
R
R
2
0
2
0
2
0
2
0
-
-
Clears the interrupt request
(Notes 2 and 3)
Does not clear the interrupt
request
(Interrupt is not set by writing "1".)
INTVLTD
INTTC03
INT1
R/W
IL17
R/W
IL25
R/W
IL9
R
1
0
1
0
1
0
1
0
-
Write
-
TMP89FM42
INTTC02
INT5
INT0
R/W
IL16
R/W
IL24
R/W
IL8
R
0
0
0
0
0
0
0
0
-
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