Midas RTE-V821-PC, Руководство пользователя

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RTE-V821-PC USER’ S MANUAL
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5.2.8. Interrupt Control Unit (ICU)
The CPU pins INTP10- and INTP11- (interrupt control unit functions) are used in the system as
listed below. The INTP13- pin is connected to the JSUBPORT connector and open to the user.
INTP12- is not used in the RTE-V821-PC either (see Chapter 8 for the NMI.)
INTP10- is reserved for the system but is not in use at present. INTP11- should be initialized
simultaneously with a user's circuit connected to the JEXT connector.
Pin name Use
INTP10- Reserved for the system
INTP11- Interrupt request (INT-) from the JEXT connector
Use of Interrupts
5.2.9. Bus Arbitration Unit (BAU)
The bus arbitration unit is not used in the RTE-V821-PC. The CPU pins related to the bus
arbitration unit (HLDRQ- and HLDAK-) are not used in the RTE-V821-PC either.
5.2.10. Clock Generator (CG)
Clock pulses are generated from an oscillator or crystal mounted on the OSC1 socket. See
Section 3.10 for how to mount an oscillator or crystal on the OSC1 socket. The RTE-V821-PC
uses the CLKOUT output signal from the CPU. If the CLKOUT pin is disabled, the RTE-
V821-PC stops to operate normally. So, the CG-related register should be set as listed below.
Register I/O address Setting Description
CGC C000-00E0H 0000-1001B When an oscillator is mounted on the OSC1
socket
0000-0001B When a crystal is mounted on the OSC1
socket
Clock Generator Setting
5.2.11. Watchdog Timer Unit (WDT)
The watchdog timer unit function is not used in the RTE-V821-PC. The CPU pin (WDTOUT)
related to the watchdog timer unit is not used in the RTE-V821-PC either.