Hitachi H8/3664 Hardware Manual page 208

Table 12.1 summarizes the timer W functions.
Table 12.1 Timer W Functions
Item
Clock sources
General registers
(output compare/input
capture registers)
Counter clearing function GRA
Initial output value
setting function
Buffer function
Compare 0
match output
1
Toggle
Input capture function
PWM mode
Interrupt sources
192
Input/Output Pins
Counter FTIOA
Internal clocks: φ, φ/2, φ/4, φ/8
External clock: FTCI
Period GRA
specified in
GRA
GRA
compare compare
match match
—
Yes
—
Yes
—
Yes
—
Yes
—
Yes
—
Yes
— —
Overflow Compare
match/input
capture
FTIOB FTIOC
GRB GRC (buffer
register for
GRA in buffer
mode)
— —
Yes Yes
—
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes Yes
Yes Yes
Compare Compare
match/input match/input
capture capture
FTIOD
GRD (buffer
register for
GRB in buffer
mode)
—
Yes
—
Yes
Yes
Yes
Yes
Yes
Compare
match/input
capture