User's Manual

1.4.10 Antenna Control

T77H468 provides GPIO control signals for external antenna tuner application. The function

is under development for customization. ANTCTRL (0-3) are provided to allow for the

implementation of antenna tuning solutions. The number antenna control lines required will

depend on the application and antenna/band requirements.

Foxconn general design for WWAN module with two control signals.

ANTCTL0

ANTCTL1

Frequency (MHz)

Band support

0 0 880 ~ 960 Band8 (WCDMA) + GSM900 + High Bands

0 1 791 ~ 894 Band5 (WCDMA, LTE) + GSM850 + High Bands

1 0 746 ~787 Band13 (LTE) + High Bands

1 1 704 ~746 Band17 (LTE) + High Bands

1.4.11 Coexistence

COEX1, COEX2 and COEX3 are provided to allow for the implementation of wireless

coexistence solutions between the radio(s) on the M.2 Card and other off-card radio(s).

These other radios can be located on another M.2 Card located in the same host platform or

as alternate radio implementations (for example, using a PCI Express M.2 CEM or a

proprietary form-factor add-in solution).

Reserve for future extension, please contact with us if need to use these Pins.

Item Signal name GPIO from MDM9x15 Description

COEX1 LTE_ACTIVE

GPIO_67

TBD

COEX2 LTE_FRAME_SYNC

GPIO_66

TBD

COEX3 LTE_WLAN_PRIORITY

GPIO_65

TBD