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M38045F2HKP датащи(PDF) 167 Page - Renesas Technology Corp

номер детали M38045F2HKP
подробное описание детали  8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  387 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M38045F2HKP датащи(HTML) 167 Page - Renesas Technology Corp

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2-43
APPLICATION
2.3 Timer
Rev.1.00 Jan 14, 2005
REJ09B0212-0100Z
3804 Group (Spec.H)
Fig. 2.3.27 Control procedure (1)
P4D
TZM
TYZCSS
TZL
TZH
INTSEL
IREQ1
ICON1
IREQ2
ICON2
TZM
CLI
(address 000916)
(address 002A16)
(address 000F16)
(address 002816)
(address 002916)
(address 003916)
(address 003C16), bit0
(address 003E16), bit0
(address 003D16), bit5
(address 003F16), bit5
(address 002A16), bit6
RESET
SEI
0XXXXXXX2
RTI
Error processing
0
1
0
1
0
X10X00112
0011XXXX2
FF16
FF16
XXX1XXX12
•All interrupts disabled
•Set P47/CNTR2 pin to input mode
•Timer Z: Pulse width measurement mode
(Measure “H” level of pulses input from CNTR2 pin.)
•Set timer Z initial value
•Timer Z interrupt enabled
•CNTR2 interrupt enabled
•Timer Z count start
•Interrupts enabled
Note 1: When using Index X mode flag (T)
Note 2: When using Decimal mode flag (D)
•Push registers used in interrupt process routine
•Pop registers pushed to stack
Pop registers
Initialization
CLT (Note 1)
CLD (Note 2)
Push registers to stack
Timer Z interrupt process routine
q x: This bit is not used here. Set it to “0” or “1” arbitrarily.
Note: Timer Z interrupt also occurs owing to factors other than measurement level.
(CNTR2 input =“L” in this application)
Process it by software as error processing is performed for measurement level as necessary.
(CNTR2 input level can be checked by reading the contents of sharing port P47 register.)



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