Channels Of External Interrupt Circuit - Fujitsu F2MC-8FX Hardware Manual

CHAPTER 18 EXTERNAL INTERRUPT CIRCUIT
18.3

Channels of External Interrupt Circuit

This section describes the channels of the external interrupt circuit.
Channels of External Interrupt Circuit
In this series, each unit has six channels of the external interrupt circuit.
Table 18.3-1 and Table 18.3-2 show the correspondence among the channel, pin and register.
Table 18.3-1 Pins of External Interrupt Circuit
Unit
Table 18.3-2 Registers of External Interrupt Circuit
Unit
NOTE:
INT00 to INT13 pins serve both as external interrupt inputs and as general-purpose I/O ports. When the
corresponding pin of the INT00 to INT13 pins is set as an input port by the port direction register (DDR)
and the corresponding external interrupt input is enabled by the external interrupt control register (EIC),
that pin functions as an external interrupt input pin (INT00 = INT13).The state of pins can be read from the
port data register (PDR) whenever input port is set as a pin function. However, the value of PDR is read
when read-modify-write instruction is used.
306
Pin name
INT00
0
INT01
INT02
1
INT03
INT04
2
INT05
INT06
3
INT07
INT10
4
INT11
INT12
5
INT13
Register name
0 EIC00
1 EIC10
2 EIC20
3 EIC30
4 EIC01
5 EIC11
Pin function
External interrupt input ch.0
External interrupt input ch.1
External interrupt input ch.2
External interrupt input ch.3
External interrupt input ch.4
External interrupt input ch.5
External interrupt input ch.6
External interrupt input ch.7
External interrupt input ch.8
External interrupt input ch9
External interrupt input ch.10
External interrupt input ch.11
Corresponding register (Name in this manual)
EIC: External Interrupt Control register