Description of Functions ---- 23
7.9
KEYPAD
Model No.: SKRPABE010, manufacturer: Alps Electric Corp.
This is connected to the KEYPAD controller, one of the peripheral features of i.MX31
.
Fig.20
KEYPAD
7.10
AC97
Model No.: HSJ1601-011110, manufacturer: HOSHIDEN
Audio signals conform to the Synchronous Serial Interface (SSI) specifications and are connected to AD1981BL,
which is a CODEC device.
External input/output is connected to
φ
3.5 mini-jacks J1 to J3. LINE OUT and HEAD PHONE can be switched over
with the JP13, 14 settings.
LINE IN
MIC
LINE OUT/HEAD PHONE
Fig. 21
Audio In/Out
The following table shows the internal connection of each silk-printed JP. The factory default is the HEAD PHONE
setting.
JP13
LEFT
JP14
RIGHT
LINE OUT
LINE-side
short-circuited
LINE-side
short-circuited
HEAD PHONE
HP-side
short-circuited
(factory default)
HP-side
short-circuited
(factory default)
Table
6
JP13, 14 Settings