W90P710CD Datasheet, PDF (502/552 Pages) Winbond – 32-BIT ARM7TDMI-BASED MCU

W90P710CD/W90P710CDG
KPIR[3:0]
W90P710
KPIC[7:0]
4 :16
DECODER
COL[7:0]
ROW[[16:0]
16x8
key pad
matrix
Fig. 6.21.1 W90P710 Keypad Interface
6.21.1 KeyPad Interface Register Map
REGISTER
KPICONF
ADDRESS R/W
DESCRIPTION
RESET VALUE
0xFFF8_8000 R/W Keypad controller configuration Register 0x0000_0000
KPI3KCONF 0xFFF8_8004 R/W Keypad controller 3-keys configuration 0x0000_0000
register
KPILPCONF 0xFFF8_8008 R/W Keypad controller low power 0x0000_0000
configuration register
KPISTATUS 0xFFF8_800C R/O Keypad controller status register
0x0000_0000
Publication Release Date: September 19, 2006
- 503 -
Revision B2