Publication No. PPC11A-HRM/1
Control and Status Registers 87
5.18.9 GPIO (23-16) Availability Register (Offset 0x690)
For each GPIO:
1 = GPIO available
0 = GPIO not available
This register allows software to easily determine which of the GPIO23-16 signals are
available on the PPC11A. All GPIO signals use shared backplane pins and are only
available when the PPC11A is configured with the appropriate build option.
5.18.10 GPIO (23-16) Interrupt Select Register (Offset 0x691)
For each GPIO:
1 = Interrupt routed to secondary GPIO interrupt output
0 = Interrupt routed to main GPIO interrupt output (default)
5.18.11
GPIO (23-16) Interrupt Non-Maskable Register (Offset 0x692)
For each GPIO:
1 = GPIO interrupt is non-maskable
0 = GPIO interrupt is maskable (default)
Once a GPIO interrupt has been set as non-maskable in this register, it cannot be set
to maskable again until after the next reset has occurred.
5.18.12 GPIO (23-16) Test Mode Register (Offset 0x693)
For each GPIO:
1 = GPIO in test mode (input circuits receive the value in GPIO23-16 Out)
0 = GPIO not in test mode (input circuits receive the pin value) (default).
5.19
GPIO Availability Debug Register (Offset 0x694)
Bits
Description
Default
7 to 3
Reserved
00000
b
2
GPIO bank 3 (GPIOs 18-16) availability:
0 = Bank 3 is not available
1 = Bank 3 is available
1
GPIO bank 2 (GPIOs 15-8) availability:
0 = Bank 2 is not available
1 = Bank 2 is available
0
GPIO bank 1 (GPIOs 7-0) availability:
0 = Bank 1 is not available
1 = Bank 1 is available
Содержание PPC11A
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