Fujitsu MB91260B Series Hardware Manual page 255

CHAPTER 11 MULTIFUNCTIONAL TIMER
Table 11.4-8 Input Capture State Control Register (ch.2, ch.3), Lower Byte (ICSL23)
Bit Name
ICP3:
Interrupt request
bit7
flag bit
(Input capture 3)
ICP2:
Interrupt request
bit6
flag bit
(Input capture 2)
ICE3:
Interrupt request
bit5
enable bit
(Input capture 3)
ICE2:
Interrupt request
bit4
enable bit
(Input capture 2)
EG31, EG30:
bit3
Edge selection bit
bit2
(Input capture 3
EG21, EG20:
bit1
Edge selection bit
bit0
(Input capture 2)
240
• This bit is used as an interrupt request flag of the input capture 3.
• This bit is set to "1" immediately when a valid edge of an external input pin is detected.
• When a valid edge is detected while the interrupt enable bit (ICE3: bit5) is set, the interrupt
can be generated immediately.
• When this bit is set to "0": Clears the bit.
• Setting this bit to "1" has no effect on this bit.
• When this bit is read to a read modify write instruction, "1" is always read.
• This bit is used as an interrupt request flag of the input capture 2.
• This bit is set to "1" immediately when a valid edge of an external input pin is detected.
• When a valid edge is detected while the interrupt enable bit (ICE2: bit4) is set, the interrupt
can be generated immediately.
• When this bit is set to "0": Clears the bit.
• Setting this bit to "1" has no effect on this bit.
• When this bit is read to a read modify write instruction, "1" is always read.
• This bit is used to enable an input capture interrupt request of the input capture 3.
• When the interrupt flag bit (ICP3: bit7) is set while this bit is set to "1", the input capture 3
interrupt is generated.
• This bit is used to enable an input capture interrupt request of the input capture 2.
• When the interrupt flag bit (ICP2: bit6) is set while this bit is set to "1", the input capture 2
interrupt is generated.
• These bits are used to specify the valid edge polarity of the external input for the input
capture 3.
• These bits are used also to enable an operation of the input capture 3.
• These bits are used to specify the valid edge polarity of the external input for the input
capture 2.
• These bits are used also to enable an operation of the input capture 2.
Function