
CMM-9304-V2.1
Bluetooth 4.2 / 5.0 compatible module
SPEC No.
CMM-9304-V2.1
BLE module
Revision
2.8
State
2017-11-13
C-MAX printed
2017-11-13
Version
English
Page
3 of 11
C-MAX
1.2.2 Module Dimensions and Pinnings
Module Thickness (excluding pin header connectors, including shielding) = 2.8 mm max.
1.3 Controller and Companion Modes of Operation
Module as Controller (1 in figure below)
The CMM-9304 module can be used with an external host where the user application and the host
layers of the stack reside in the external processor or host controller. Interaction with the module
occurs through the standard HCI commands (defined in the Bluetooth Core Specifications, volume 2,
part E) and vendor specific HCI commands via the SPI/UART interface detailed in section 3 below.
Module as Companion (2 in figure below)
The CMM-9304 module can be used with an external host where the user application resides in the
external host, and the stack resides in the EM9304. Interaction with the module occurs through
proprietary ACI commands via the SPI/UART interface.