eZ80L92 MCU
Product Specification
87
Table 37. Timer Input Source Select Register (TMR_ISS = 0092h)
Bit
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
Reset
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
CPU Access
Note: R/W = Read/Write.
Bit
Position
Value Description
[7:6]
TMR3_IN
00
The timer counts at the system clock divided by the
prescaler.
01
The timer event input is the Real-Time Clock source
(32 kHz or 50/60 Hz—refer to the Real Time Clock section
on page 88 for details).
10
11
00
The timer event input is the GPIO Port B pin 1.
The timer event input is the GPIO Port B pin 1.
[5:4]
TMR2_IN
The timer counts at the system clock divided by the
prescaler.
01
The timer event input is the Real-Time Clock source
(32 kHz or 50/60 Hz—refer to the Real Time Clock section
on page 88 for details).
10
11
00
The timer event input is the GPIO Port B pin 0.
The timer event input is the GPIO Port B pin 0.
[3:2]
TMR1_IN
The timer counts at the system clock divided by the
prescaler.
01
The timer event input is the Real-Time Clock source
(32 kHz or 50/60 Hz—refer to the Real Time Clock section
on page 88 for details).
10
11
00
01
The timer event input is the GPIO Port B pin 1.
The timer event input is the GPIO Port B pin 1.
Timer counts at system clock divided by prescaler.
[1:0]
TMR0_IN
Timer event input is Real-Time Clock source
(32 kHz or 50/60 Hz—refer to the Real Time Clock section
on page 88 for details).
10
11
The timer event input is the GPIO Port B pin 0.
The timer event input is the GPIO Port B pin 0.
PS013015-0316
Programmable Reload Timers
ZILOG [ ZILOG, INC. ]
