Interrupts
7-4
Am186™CC/CH/CU Microcontrollers User’s Manual
.
7.4
REGISTERS
Table 7-2 lists the registers used by the microcontroller for interrupts. In addition, the IF flag
in the Processor Status Flags (FLAGS) processor register is used to enable or disable
interrupts (see “Registers Used” on page 7-18). Appendix A summarizes the bits in all the
registers. For a complete description of all the peripheral registers, see the
Am186™CC/
CH/CU Microcontrollers Register Set Manual, order #21916.
Table 7-1
Interrupt Multiplexed Signals
Signal
Multiplexed
Signal(s)
Default
Signal
Function
INT0
—
INT0
Maskable interrupt requests
INT1
—
INT1
INT2
—
INT2
INT3
—
INT3
INT4
—
INT4
INT5
—
INT5
INT6
PIO19
1
Notes:
1. For information about using PIOs as external interrupt sources, see “PIOs as
Interrupts” on page 7-18.
PIO19
INT7
PWD
2
, PIO7
2. Selected by setting the PWD bit in the SYSCON register.
PIO7
INT8
PIO6
PIO5
RAS1, MCS3
RAS1
PIO15
WR
WR
PIO27
TMRIN0
PIO27
PIO29
DT/R
DT/R
PIO30
DEN/DS
DEN
PIO33
ALE
ALE
PIO34
BHE, ADEN
BHE
PIO35
SRDY
SRDY
NMI
—
NMI
Nonmaskable interrupt
Summary of Contents for Am186 CC
Page 1: ...Am186 CC CH CU Microcontrollers User s Manual Order 21914B...
Page 4: ...iv Am186 CC CH CU Microcontrollers User s Manual...
Page 18: ...Table of Contents xviii Am186 CC CH CU Microcontrollers User s Manual...
Page 24: ...Introduction xxiv Am186 CC CH CU Microcontrollers User s Manual...
Page 40: ...Architectural Overview 1 16 Am186 CC CH CU Microcontrollers User s Manual...
Page 86: ...System Overview 3 36 Am186 CC CH CU Microcontrollers User s Manual...
Page 92: ...Emulator Support 4 6 Am186 CC CH CU Microcontrollers User s Manual...
Page 112: ...DRAM Controller 6 8 Am186 CC CH CU Microcontrollers User s Manual...
Page 134: ...Interrupts 7 22 Am186 CC CH CU Microcontrollers User s Manual...
Page 186: ...Programmable I O Signals 9 8 Am186 CC CH CU Microcontrollers User s Manual...
Page 200: ...Watchdog Timer 11 6 Am186 CC CH CU Microcontrollers User s Manual...
Page 232: ...Asynchronous Serial Ports UARTs 13 24 Am186 CC CH CU Microcontrollers User s Manual...
Page 242: ...Synchronous Serial Port SSI 14 10 Am186 CC CH CU Microcontrollers User s Manual...
Page 264: ...High Level Data Link Control HDLC 15 22 Am186 CC CH CU Microcontrollers User s Manual...
Page 332: ...Universal Serial Bus USB 18 34 Am186 CC CH CU Microcontrollers User s Manual...
Page 348: ...Register Summary A 16 Am186 CC CH CU Microcontrollers User s Manual...
Page 376: ...Index Index 18 Am186 CC CH CU Microcontrollers User s Manual...