W83L951DG Datasheet, PDF (89/112 Pages) Winbond – Mobile Keyboard and Embedded Controller

W83L951DG/W83L951FG
6.16 External Interrupt Control Block
About External Interrupt, in W83L951DG/FG, External Interrupt Group1 (EXTINT1[7:0]), External
Interrupt Group2 (EXTINT2[7:0]) and External Interrupt Group3 (EXTINT3[7:0]) interrupt source pins
are same as GPA[7:0], GPB[7:0] and GPC[7:0].
Table 6-25.External Interrupt Control Register Define
INTERRUPT BLOCK(17)
EXTADDR
NAME
7
6
5
4
80
EXTINTE1
INT17 INT16 INT15 INT14
81
EXTINTE2
INT27 INT26 INT25 INT24
82
EXTINTE3
INT37 INT36 INT35 INT34
83
EXTINTREQ1 INT17 INT16 INT15 INT14
84
EXTINTREQ2 INT27 INT26 INT25 INT24
85
EXTINTREQ3 INT37 INT36 INT35 INT34
88
EXTINTT1
INT17 INT16 INT15 INT14
89
EXTINTT2
INT27 INT26 INT25 INT24
8A
EXTINTT3
INT33
INT32
8B
EXTINTT4
INT37
INT36
3
INT13
INT23
INT33
INT13
INT23
INT33
INT13
INT23
INT31
INT35
2
INT12
INT22
INT32
INT12
INT22
INT32
INT12
INT22
1
INT11
INT21
INT31
INT11
INT21
INT31
INT11
INT21
INT30
INT34
0
INT10
INT20
INT30
INT10
INT20
INT30
INT10
INT20
Note: All register initial after system reset.
6.16.1 Register Description
6.16.1.1 External Interrupt Enable 1/2/3 Register (EXTINTE1/2/3) (Default Value:
0000_0000)
1: Enable.
In enable state, external interrupt source will cause external interrupt request to generate the
interrupt to Microprocessor.
0: Disable.
6.16.1.2 External Interrupt Request 1/2/3 Register (EXTINTREQ1/2/3) (Default Value:
0000_0000)
Bit7~0: External Interrupt Request
Read: 1: Requested, 0: No Requested.
Write: 1: Clear Request, 0: No Change
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Publication Release Date: August 2006
Revision 1.0