ez80190 ZiLOG Semiconductor, ez80190 Datasheet - Page 47
ez80190
Manufacturer Part Number
ez80190
Description
Ez80190 Microprocessor
Manufacturer
ZiLOG Semiconductor
Datasheet
1.EZ80190.pdf
(222 pages)
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PS006613-0306
PRT Count
PRT Clock
Value
Interrupt
Request
(CLK/2)
IOWRN
CLK
Parameter
PRT Enabled
Reload and Restart Enabled
PRT Clock Divider = 2
Single-Pass Mode
PRT Interrupt Enabled
PRT Reload Value
CONTINUOUS Mode
In CONTINUOUS mode, when the end-of-count value,
timer automatically reloads the 16-bit start value from the Timer Reload registers,
TMRx_RR_H and TMRx_RR_L. Downcounting continues on the next clock edge.
In CONTINUOUS mode, the PRT continues to count until disabled. An example of
a PRT operating in CONTINUOUS mode is illustrated in
information is indicated in
x
Figure 5. PRT Continuous Mode Operation Example
Table 3. PRT Single-Pass Mode Operation Example
I/O Write to TMRx_CTL
4
Enables PRT
Table
Control Register(s)
TMRx_CTL[0]
TMRx_CTL[1]
TMRx_CTL[3:2]
TMRx_CTL[4]
TMRx_CTL[6]
{TMRx_RR_H, TMRx_RR_L}
PRELIMINARY
3
4.
2
eZ80190 Product Specification
1
0000h
Figure
Programmable Reload Timers
, is reached, the
4
Value
1
1
00b
0
0
0004h
5. Timer register
3
33
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