User`s guide

Firmware Configuration
6-52 AT85C51SND3Bx Firmware User’s Guide
7691A–MP3–08/07
– KBD_9_KEYS: a 3x3 matrix keyboard organization
– KBD_6_KEYS: a 3x2 matrix keyboard organization
– KBD_4_KEYS: a 2x2 matrix keyboard organization
 Keypad Power-On Key Configuration:
Table 6-14. Keypad power-on key
Definition Label Description Values
KBD_USE_POWER_KEY Use of the on-chip DC-DC power-on key TRUE
[FALSE]
C0
KEY_
R0_C0
KEY_
R1_C0
KEY_
R0_C1
KEY_
R0_C2
KEY_
R2_C0
KEY_
R1_C1
KEY_
R2_C1
KEY_
R1_C2
KEY_
R2_C2
C1
C2
P1.0
P1.1 P1.2
R0
R1
R2
VSS
P1.3
P1.4
C0
KEY_
R0_C0
KEY_
R0_C1
KEY_
R0_C2
KEY_
R1_C0
KEY_
R1_C1
KEY_
R1_C2
C1
C2
P1.0
P1.1 P1.2
R0
R1
VSS
P1.3
C0
KEY_
R0_C0
KEY_
R0_C2
KEY_
R1_C0
KEY_
R1_C2
C1
P1.0
P1.1
R0
R1
VSS
P1.2