Fujitsu MB90895 Series Hardware Manual page 252

16 bit, controller manual
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CHAPTER 7 16-bit I/O timer
Table 7.3-3 Functions of Input Capture Control Status Register (ICS01)
bit0
bit1
bit2
bit3
bit4
bit5
bit6
bit7
234
bit name
EG01, EG00:
These bits enable or disable the operation of input capture 0.The
Input capture 0 edge
edge detected by input capture 0 is selected when the operation
select bits
of input capture 0 is enabled.
EG01, EG00 = "00
disabled and no edge is detected.
EG01, EG00= "00
enabled and the edge is detected.
EG11, EG10:
These bits enable or disable the operation of input capture 1.The
Input capture 1 edge
edge detected by input capture 1 is selected when the operation
select bits
of input capture 1 is enabled.
EG01, EG00= "00
disabled and no edge is detected.
EG01, EG00= "00
enabled and the edge is detected.
ICE0:
This bit enables or disables an interrupt when the edge is
Input capture 0 interrupt
detected by input capture 0.
enable bit
When set to "0": No interrupt is generated even when the
valid edge is detected by input capture 0.
When set to "1": An interrupt is generated when the valid
edge is detected by input capture 0.
ICE1:
This bit enables or disables an interrupt when the edge is
Input capture 1 interrupt
detected by input capture 1.
enable bit
When set to "0": No interrupt is generated even when the
edge is detected by input capture 1.
When set to "1": An interrupt is generated when the edge is
detected by input capture 1.
ICP0:
This bit indicates the edge detection by input capture 0.
Input capture 0 valid
edge detection flag bit
When set to "0": The bit is cleared.
When the bit is set to "1": No effect.
When EI
Read by read modify write instructions: 1 is always read.
ICP1:
This bit indicates the edge detection by input capture 1.
Input capture 1 valid
edge detection flag bit
When set to "0": The bit is cleared.
When the bit is set to "1": No effect.
When EI
Read by read modify write instructions: "1" is always read.
Function
": The operation of input capture 0 is
B
": The operation of input capture 0 is
B
": The operation of input capture 1 is
B
": The operation of input capture 1 is
B
When the valid edge selected by the input capture 0 edge
select bits (EG01, EG00) is detected, the ICP0 bit is set to 1.
When the valid edge is detected by input capture 0 (ICP0 =
1) when an interrupt due to the edge detection by input
capture 0 is enabled (ICE0 = 1), an interrupt is generated.
2
OS started: Bit cleared
When the valid edge selected by the input capture 1 edge
select bits (EG11, EG10) is detected, the ICP1 bit is set to
"1".
When the valid edge is detected by input capture 1 (ICP1 =
1) when an interrupt due to the edge detection by input
capture 1 is enabled (ICE1 = 1), an interrupt is generated.
2
OS started: Bit cleared

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