HD64F3048VTF8 Datasheet, PDF (376/903 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip

Section 10 16-Bit Integrated Timer Unit (ITU)
10.2.11 Timer I/O Control Register (TIOR)
TIOR is an 8-bit register. The ITU has five TIORs, one in each channel.
Channel
0
1
2
3
4
Abbreviation
TIOR0
TIOR1
TIOR2
TIOR3
TIOR4
Function
TIOR controls the general registers. Some functions differ in
PWM mode. TIOR3 and TIOR4 settings are ignored when
complementary PWM mode or reset-synchronized PWM mode
is selected in channels 3 and 4.
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 TIOCA and TIOCB pins. If the
output compare function is selected, TIOR also selects the type of output. If input capture is
selected, TIOR also selects the edge or edges of the input capture signal.
TIOR is initialized to H'88 by a reset and in standby mode.
Bit 7—Reserved: Read-only bit, always read as 1.
Rev. 3.00 Sep 27, 2006 page 348 of 872
REJ09B0325-0300