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16-Bit Timer/Event Counter AA
(4)
Symbol
TAAnIOC1
Caution
TAAnIOC1 - TAA dedicated I/O control register 1
The TAAnIOC1 register is an 8-bit register that controls the valid edge for the
external input signals (TIAAn0 and TIAAn1).
This register can be read and written in 8-bit or 1-bit units.
RESET input clears this register to 00H.
Address: TAA0IOC1 FFFFF593H, TAA1IOC1 FFFFF5A3H,
TAA2IOC1 FFFFF5B3H, TAA3IOC1 FFFFF5C3H,
TAA4IOC1 FFFFF5D3H
7
6
5
0
0
0
TAAnIS3
TAAnIS2
0
0
0
1
1
0
1
1
TAAnIS1
TAAnIS0
0
0
0
1
1
0
1
1
1.
Bits TAAnIS3 to TAAnIS0 are valid only in the free-running capture mode
and pulse width measurement mode. In all the other modes, capture
operation is not performed.
2.
If used as the capture input, be sure to set the corresponding alternate-
function pins TAAnOE1 and TAAnOE0 of the TAAnIOC0 register to "Timer
output is disabled" and set the capture input valid edge. Then set the
corresponding alternate-function port to input mode.
3.
In the external event count mode (TAAnCTL1.TAAnEEE = 1), set the
TIAAn0 capture input to "No edge detection" (TAAnIS1 and TAAnISO bits =
00).
User's Manual U18743EE1V2UM00
4
3
2
TAAn
TAAn
0
IS3
IS2
Capture input (TIAAn1) valid edge setting
No edge detection (capture operation is invalid)
Detection of rising edge
Detection of falling edge
Detection of both edges
Capture input (TIAAn0) valid edge detection
No edge detection (capture operation is invalid)
Detection of rising edge
Detection of falling edge
Detection of both edges
Chapter 10
1
0
R/W
TAAn
TAAn
R/W 00H
IS1
IS0
After
reset
319
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