HD6413008VF25 Datasheet, PDF (248/688 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

8. 16-Bit Timer
8.2.10 Timer I/O Control Register (TIOR)
TIOR is an 8-bit register. The 16-bit timer has three TIORs, one in each channel.
Channel Abbreviation Function
0
TIOR0
TIOR controls the general registers. Some functions differ in PWM
1
TIOR1
mode.
2
TIOR2
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
⎯
IOB2 IOB1 IOB0
⎯
IOA2 IOA1 IOA0
1
0
0
0
1
0
0
0
⎯
R/W R/W R/W
⎯
R/W
R/W
R/W
I/O control A2 to A0
These bits select GRA
functions
Reserved bit
I/O control B2 to B0
These bits select GRB functions
Reserved bit
Each TIOR is an 8-bit readable/writable register that selects the output compare or input capture
function for GRA and GRB, and specifies the functions of the TIORA and TIORB pins. If the
output compare function is selected, TIOR also selects the type of output. If input capture is
selected, TIOR also selects the edges of the input capture signal.
TIOR is initialized to H'88 by a reset and in standby mode.
Bit 7—Reserved: This bit cannot be modified and is always read as 1.
Rev.4.00 Aug. 20, 2007 Page 202 of 638
REJ09B0395-0400