Toshiba TX49 TMPR4937 Manual page 389

Count Value
TMCPRA Reg.
Compare Value
0x000000
TCE = 0
CRE = 0
TZCE = 1
TIIE = 1
Timer Interrupt*
TMODE = 00 (Interval Timer Mode), CCS = 0 (Internal Clock)
Figure 12.3.1 Operation Example of Interval Timer (Using Internal Clock)
Count Value
TMCPRA Reg.
Compare Value
0x000000
TCE = 1
TIIE = 1
TCLK
Interrupt*
TMODE = 00 (Interval Timer Mode), CCS = 0 (External Clock), ECES = 0 (Falling Edge)
Figure 12.3.2 Operation Example of the Interval Timer (External Input Clock: Rising Edge Operation)
TCE = 1 TCE = 0 TCE = 1 TCE = 0 TCE = 1
CRE = 1 CRE = 0
TIIS = 0
TCE = 0 TCE = 1
CRE = 0 (Counter Reset Disable), TZCE = 1 (Zero Clear Enable)
12-5
Chapter 12 Timer/Counter
TZCE = 0 TZCE = 1
TIIE = 0 TIIE = 1
TIIS = 0 TIIS = 0
TIIE = 0
TIIS = 1
Time
TIIS = 0
Time