Table 10-1 summarizes the ITU functions.
Table 10-1 ITU Functions
Item
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Clock sources
Internal clocks: ø, ø/2, ø/4, ø/8
External clocks: TCLKA, TCLKB, TCLKC, TCLKD, selectable independently
General registers
GRA0, GRB0
GRA1, GRB1
GRA2, GRB2
GRA3, GRB3
GRA4, GRB4
(output compare/input
capture registers)
Buffer registers
—
—
—
BRA3, BRB3
BRA4, BRB4
Input/output pins
TIOCA
0
,
TIOCA
1
,
TIOCA
2
,
TIOCA
3
,
TIOCA
4
,
TIOCB
0
TIOCB
1
TIOCB
2
TIOCB
3
TIOCB
4
Output pins
—
—
—
—
TOCXA
4
,
TOCXB
4
Counter
clearing
function
GRA0/GRB0 GRA1/GRB1 GRA2/GRB2 GRA3/GRB3 GRA4/GRB4
compare compare compare compare compare
match or
match or
match or
match or
match or
input capture
input capture
input capture
input capture
input capture
0
o
o
o
o
o
1
o
o
o
o
o
Toggle
o
o
—
o
o
Input capture function
o
o
o
o
o
Synchronization
o
o
o
o
o
PWM mode
o
o
o
o
o
Reset-synchronized —
—
—
o
o
PWM mode
Complementary PWM
—
—
—
o
o
mode
Phase counting mode
—
—
o
—
—
Buffering
—
—
—
o
o
DMAC activation
GRA0 compare GRA1 compare GRA2 compare GRA3 compare —
match or
match or
match or
match or
input capture
input capture
input capture
input capture
Interrupt sources
Three sources
Three sources
Three sources
Three sources
Three sources
• Compare • Compare • Compare • Compare • Compare
match/input match/input match/input match/input match/input
capture A0
capture A1
capture A2
capture A3
capture A4
• Compare • Compare • Compare • Compare • Compare
match/input match/input match/input match/input match/input
capture B0
capture B1
capture B2
capture B3
capture B4
• Overflow
• Overflow
• Overflow
• Overflow
• Overflow
Legend
o
: Available
—: Not available
Compare
match output
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