tmp89fh40 TOSHIBA Semiconductor CORPORATION, tmp89fh40 Datasheet - Page 81

• Manufacturer Part Number: tmp89fh40
• Description: 8 Bit Microcontroller Tlcs-870/c1 Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA000
4.3
External interrupt control register 4
EINTCR4
(0x0FDB)
to 4.
and 5.
Function
The condition for generating interrupt request signals and the noise cancel time can be set for external interrupts 1
The condition for generating interrupt request signals and the noise cancel time are fixed for external interrupts 0
Note 1: fcgck: Gear clock [Hz], fs: Low-frequency clock [Hz]
Note 2: Interrupt requests may be generated during transition of the operation mode. Before changing the operation mode, clear
Note 3: Interrupt requests may be generated when EINTCR4 is changed. Before doing such operation, clear the corresponding
Note 4: The contents of EINTCRx<INTxLVL> are updated each time an interrupt request signal is generated.
Note 5: Bits 7 to 5 of EINTCR4 are read as "0".
INI4LVL
INT4ES
INT4NC
Read/Write
Bit Symbol
After reset
the corresponding interrupt enable register to "0" to disable the generation of interrupt. When the operation mode is
changed from NORMAL1/2 or IDLE1/2 to SLOW1/2 or SLEEP1, wait 12/fs [s] after the operation mode is changed and
clear the interrupt latch. And when the operation mode is changed from SLOW1/2 or SLEEP1 to NORMAL1/2 or IDLE1/2,
wait 2/fcgck+3/fspl [s] after the operation mode is changed and clear the interrupt latch.
interrupt enable register to "0" to disable the generation of interrupt. When the operation mode is changed from NOR-
MAL1/2 or IDLE1/2 to SLOW1/2 or SLEEP1, wait 12/fs [s] after the operation mode is changed and clear the interrupt
latch. And when the operation mode is changed from SLOW1/2 or SLEEP1 to NORMAL1/2 or IDLE1/2, wait 2/fcgck+3/
fspl [s] after the operation mode is changed and clear the interrupt latch.
Noise canceller pass signal level
when the interrupt request signal is
generated for external interrupt 4
Selects the interrupt request gener-
ating condition for external interrupt
4
Sets the noise canceller sampling in-
terval for external interrupt 4
R
7
0
-
R
6
0
-
R
5
0
-
00 :
01 :
10 :
11 :
00 :
01 :
10 :
11 :
Page 67
0 :
1 :
Initial state or signal level "L"
Signal level "H"
An interrupt request is generated at the rising edge of the noise canceller
pass signal
An interrupt request is generated at the falling edge of the noise canceller
pass signal
An interrupt request is generated at both edges of the noise canceller pass
signal
An interrupt request is generated at "H" of the noise canceller pass signal
fcgck [Hz]
fcgck / 2
fcgck / 2
fcgck / 2
INT4LVL
NORMAL1/2, IDLE1/2
R
4
0
2
3
4
[Hz]
[Hz]
[Hz]
3
INT4ES
R/W
0
00 :
01 :
10 :
11 :
2
fs/4 [Hz]
fs/4 [Hz]
fs/4 [Hz]
fs/4 [Hz]
SLOW1/2, SLEEP1
1
TMP89FH40
INT4NC
R/W
0
0