EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 158
EZ80F91MCU
Manufacturer Part Number
EZ80F91MCU
Description
eZ80Acclaim-TM Flash Microcontrollers
Manufacturer
ZILOG [Zilog, Inc.]
Datasheet
1.EZ80F91MCU.pdf
(396 pages)
- Current page: 158 of 396
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PS019209-0504
Timer Interrupt Enable Register
The Timer x Interrupt Enable Register, detailed in Table 55, is used to control
operation of the timer interrupts. Only bits related to functions present in a given
timer are active.
Table 55. Timer Interrupt Enable
(TMR0_IER = 0061h, TMR1_IER = 0066h, TMR2_IER = 0070h, TMR3_IER = 0075h)
[4:3]
CLK_DIV
2
TIM_CONT
1
RLD
0
TIM_EN
Bit
Reset
CPU Access
Note: R = Read only; R/W = Read/Write.
Bit
Position
7
6
IRQ_OC3_EN
00
01
10
11
0
1
0
1
0
1
Value
0
0
1
System clock divider = 4.
System clock divider = 16.
System clock divider = 64.
System clock divider = 256.
The timer operates in SINGLE PASS mode. TIM_EN (bit 0) is
reset to 0, and counting stops when the end-of-count value is
reached.
The timer operates in CONTINUOUS mode. The timer reload
value is written to the counter when the end-of-count value is
reached.
Reload function is not forced.
Force reload. When a 1 is written to this bit, the values in the
reload registers are loaded into the downcounter.
The programmable reload timer is disabled.
The programmable reload timer is enabled.
R/W
Description
Unused.
Interrupt requests for OC3 are disabled (valid only in
OUTPUT COMPARE mode). OC operations occur in Timer
3.
Interrupt requests for OC3 are enabled (valid only in
OUTPUT COMPARE mode). OC operations occur in Timer
3.
P R E L I M I N A R Y
7
0
R/W
6
0
R/W
5
0
R/W
4
0
R/W
3
0
Programmable Reload Timers
Product Specification
R/W
2
0
eZ80F91 MCU
R/W
1
0
R/W
0
0
139
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