PD17202AGF-011_15 Datasheet, PDF (8/30 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLER WITH LCD CONTROLLER/DRIVER AND KEY SCAN CIRCUIT FOR FPC (FRONT PANEL CONTROLLER)

µPD17202AGF-011
2. CONFIGURATION OF KEY MATRIX
2.1 Layout of Key Matrix
The µPD17202AGF-011 can be used to configure a key matrix of up to 30 keys, KEY0 through KEY29, by using
the KS0 through KS4 pins (key source pins) and K0 through K5 pins (key return pins).
Keys KEY0 through KEY29 are allocated as shown below. The details of each key can be set arbitrarily.
Input Pin
(Pin No.)
Output Pin
(Pin No.)
KS0 (37)
KS1 (38)
KS2 (39)
KS3 (40)
KS4 (41)
K0 (29)
KEY0
KEY6
KEY12
KEY18
KEY24
K1 (30)
KEY1
KEY7
KEY13
KEY19
KEY25
K2 (31)
KEY2
KEY8
KEY14
KEY20
KEY26
K3 (32)
KEY3
KEY9
KEY15
KEY21
KEY27
K4 (33)
KEY4
KEY10
KEY16
KEY22
KEY28
K5 (34)
KEY5
KEY11
KEY17
KEY23
KEY29
Remark Numbers in brackets ( ) are pin numbers.
6