C161U_02中文资料
Addendum
DS1, 2002-07-31
C161U
Embedded C166 with USB, USART and SSCSAF C161U-LF, Version 1.3
Please, replace the erroneous description in the C161U Data Sheet, 2001-04-19, bythe following correct text:
1Fast External Interrupts
Page 127, second paragraph:
The pins of Port2 (P2.1...P2.0) can individually be programmed to this fast interruptmode, where also the trigger transition (rising, falling or both) can be selected. TheExternal Interrupt Control register EXICON controls this feature for all 2 pins. EXICON (F1C0H / E0H)
15
00rw14
13
00rw12
11
00rw10
900rw
ESFR
8
700rw
6
500rw
4
Reset Value: 0000H
3
2
1
EXI1ESrw
EXI0ESrw
BitEXIxES
Function
External Interrupt x Edge Selection Field (x = 1:0)0 0 Fast external interrupts disabled: standard mode0 1 Interrupt on positive edge (rising)1 0 Interrupt on negative edge (falling)1 1 Interrupt on any edge (rising or falling)
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