MB86831 FUJITSU [Fujitsu Component Limited.], MB86831 Datasheet - Page 18

• Manufacturer Part Number: MB86831
• Description: 32-bit Embedded Controller
• Manufacturer: FUJITSU [Fujitsu Component Limited.]

18
MB86830 Series
3. Interrupt controller (IRC) Related Pins
4. Signals for the general-purpose 16-bit timer (MB86836)
Note : O (L) : Output “L” level
IRQ15/IRL3
IRQ14/IRL2
IRQ13/IRL1
IRQ12/IRL0
IRQ11
IRQ10
IRQ9
IRQ8
PRSCK0
OUT0
IN0
PRSCK0
OUT0
• Pin status
Symbol
Symbol
O (V) : Circuit activated ; effective level is output
Symbol
INTERRUPT
REQUEST
Prescaler Clock
Output0
Timer Output0
Timer Input0
Pin name
Pin name
Reset
O (L)
O (L)
I/O
I/O
O
O
I
I
Interrupt input pins.
When the active level set for the interrupt controller (IRC) trigger mode
is input to these pins, the request sense register of the interrupt control-
ler (IRC) holds the interrupt request. (The interrupt controller (IRC)
evaluates priority levels and performs coding for the IRL<3:0> pin, and
notifies the CPU core of the interrupt level.)
The IRQ15 to IRQ12 signals are assigned to the IRL<3:0> pin. They
function as IRQ15 to IRQ12 when the interrupt controller (IRC) be-
comes enabled.
Prescaler output pin.
The external clock mode is not supported, which is included in the
functions of the prescaler on the MB86942.
The pin is reset to “L”.
Timer output pin.
The external clock mode is not supported, which is included in the
functions of the timer on the MB86942.
The pin is reset to “L”.
Timer count operation control pin.
This pin inputs the GATE signal in MODE0 to MODE3 and the external
trigger signal in MODE4.This pin has an internal pull-down resistor.
Bus granted
O (V)
O (V)
Function
Function