R1610C RDC Semiconductor, R1610C Datasheet - Page 43

• Manufacturer Part Number: R1610C
• Description: High Performance 16 Bits MCU Integrated One 10/100M Mac Controller - 3.3V Operating Voltage/2.5V Core Voltage
• Manufacturer: RDC Semiconductor

R
13.
INT6); 2 non-maskable interrupts (NMI, WDT); 8 internal unit request sources (Timer 0, 1, 2; DMA 0, 1; MAC;
Asynchronous Serial Port 0, 1).
Data Sheet
Final Version 1.5
October 27, 2003
R
D
Interrupt Controller UNIT
D
There are 15 interrupt request sources connected to the controller: 5 maskable interrupt pins (INT[0:2], INT5,
DMA0 Interrupt REQ.
DMA1 Interrupt REQ.
Asynchronous Serial Port 0
Asynchronous Serial Port 1
DMA0 EXT bit
DMA1 EXT bit
C
C
INT5
INT6
Interrupt REQ.
MAC
Timer0/1/2
®
®
R
R
INT0
INT1
INT2
I
I
S
S
C
C
D
D
S
S
P
P
C
C
o
o
m
m
m
m
u
u
n
n
Interrupt Control Unit Block Diagram
i
i
c
c
a
a
t
t
i
i
o
o
n
n
Acknowledge to DMA,
Timer,Serial port Unit
Interrupt
Control
Logic
Internal Address/Data Bus
Acknowledge
Interrupt REQ.
Interrupt Type
In-Service
Register
Register
EOI
16 Bit
Fast Ethernet RISC Processor
Execation
Unit
16 Bit
NMI
R1610C
Watchdog Timer
NMI
43