Datasheet
Section 14 Timer Z 
Rev. 3.00 Mar. 15, 2006 Page 230 of 526 
REJ09B0060-0300   
14.3.10  Timer I/O Control Register (TIORA and TIORC) 
The TIOR registers control the general registers (GR). Timer Z has four TIOR registers 
(TIORA_0, TIORA_1, TIORC_0, and TIORC_1), two for each channel. In PWM mode including 
complementary PWM mode and reset synchronous PWM mode, the settings of TIOR are invalid. 
TIORA: TIORA selects whether GRA or GRB is used as an output compare register or an input 
capture register. When an output compare register is selected, the output setting is selected. When 
an input capture register is selected, an input edge of an input capture signal is selected. TIORA 
also selects the function of FTIOA or FTIOB pin. 
Bit Bit Name 
Initial 
Value R/W Description 
7   1  Reserved 
This bit is always read as 1. 
6 
5 
4 
IOB2 
IOB1 
IOB0 
0 
0 
0 
R/W 
R/W 
R/W 
I/O Control B2 to B0 
GRB is an output compare register: 
000: Disables pin output by compare match 
001: 0 output by GRB compare match 
010: 1 output by GRB compare match 
011: Toggle output by GRB compare match 
GRB is an input capture register: 
100: Input capture to GRB at the rising edge 
101: Input capture to GRB at the falling edge 
11X: Input capture to GRB at both rising and falling 
edges 
3   1  Reserved 
This bit is always read as 1. 
2 
1 
0 
IOA2 
IOA1 
IOA0 
0 
0 
0 
R/W 
R/W 
R/W 
I/O Control A2 to A0 
GRA is an output compare register: 
000: Disables pin output by compare match 
001: 0 output by GRA compare match 
010: 1 output by GRA compare match 
011: Toggle output by GRA compare match 
GRA is an input capture register: 
100: Input capture to GRA at the rising edge 
101: Input capture to GRA at the falling edge 
11X: Input capture to GRA at both rising and falling 
edges 
[Legend] X:  Don't care 










