Nuvoton NUC970 series, Technical Reference Manual, Page: 1240 / 1251

NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 1240 - Revision V1.30
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Keypad 3-Keys Configuration (KPI3KCONF)
Register Offset R/W Description Reset Value
KPI3KCONF 0x04 R/W Keypad 3-Keys Configuration 0x0000_0000
31 30 29 28 27 26 25 24
Reserved EN3KYRST
23 22 21 20 19 18 17 16
Reserved K32R[1:0] K32C[2:0]
15 14 13 12 11 10 9 8
Reserved K31R[1:0] K31C[2:0]
7 6 5 4 3 2 1 0
Reserved K30R[1:0] K30C[2:0]
Bits Description
[31:25]
Reserved
Reserved.
[24] EN3KYRST
Enable Three-key Reset
Setting this bit enable hardware reset when three-key is detected.
0 = Three-key function is disable.
1 = Three-key function is enable.
[23:21]
Reserved
Reserved.
[20:19] K32R
The #2 Key Row Address
The #2 means the row address and the column address is the highest of the specified 3-
keys.
[18:16] K32C The #2 Key Column Address.
[15:13] Reserved Reserved.
[12:11] K31R
The #1 Key Row Address
The #1 means the row address and the column address is the 2nd of the specified 3-keys.
[10:8]
K31C The #1 Key Column Address.
[7:5] Reserved Reserved.
[4:3] K30R
The #0 Key Row Address
The #0 means the row address and the column address is the lowest of the specified 3-
keys.
[2:0] K30C The #0 Key Column Address.