mpc89l515ap Megawin Technology, mpc89l515ap Datasheet - Page 15

• Manufacturer Part Number: mpc89l515ap
• Description: 8-bit Micro-controller
• Manufacturer: Megawin Technology

TIMER0 (T0) AND TIMER1 (T1)
Mode 0
The timer register is configured as a 13-bit register. As when the count rolls over from all
1s to all 0s, it sets the timer interrupt flag TFx. The counted input is enabled to the timer
when TRx = 1 and either GATE=0 or INTx = 1. Mode 0 operation is the same for Timer0
and Timer1.
Mode 1
Mode1 is the same as Mode0, except that the timer register is being run with all 16 bits.
Mode 2
Mode 2 configures the timer register as an 8-bit counter (TLx) with automatic reload. Overflow from
TLx does not only set TFx, but also reloads TLx with the content of THx, which is determined by
user’s program. The reload leaves THx unchanged. Mode 2 operation is the same for Timer0 and
Timer1.
MEGAWIN
T0 or T1 pin
(sampled)
T0 or T1 pin
(sampled)
OSC/12
OSC/12
/INTx
GATE
/INTx
GATE
C//T
C//T
when EXEN2=1. When whether TCLK or RCLK is 1, this bit is ignored and the timer is forced to
auto-reload on Timer2 overflow.
0
1
0
1
TRx
TRx
MPC89x515A Data Sheet
0
1
0
1
TLx[7:0] THx[7:0]
TLx[4:0] THx[7:0]
TFx
TFx
Mode 1
Mode 0
Interrupt
Interrupt
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