CC2564C Datasheet, PDF (28/52 Pages) Texas Instruments – CC2564C Dual-Mode Bluetooth Controller

CC2564C
SWRS199A – APRIL 2016 – REVISED NOVEMBER 2016
www.ti.com
6.4.1.2 Transmitter
The transmitter is an all-digital, sigma-delta phase-locked loop (ADPLL) based with a digitally controlled
oscillator (DCO) at 2.4 GHz as the RF clock. The transmitter directly modulates the digital PLL. The power
amplifier is also digitally controlled. The transmitter uses the polar-modulation technique. While the phase-
modulated control word is fed to the ADPLL, the amplitude-modulated controlled word is fed to the class-E
amplifier to generate a Bluetooth standard-compliant RF signal.
New features include:
• Improved TX output power
• LMS algorithm to improve the differential error vector magnitude (DEVM)
6.4.2 Host Controller Interface
The CC2564C device incorporates one UART module dedicated to the HCI transport layer. The HCI
transports commands, events, and ACL between the device and the host using HCI data packets.
The CC2564C device supports the H4 protocol (4-wire UART) with hardware flow control and the H5
protocol (3-wire UART) with software flow control. The CC2564C device automatically detects the protocol
on reception of the first command.
The maximum baud rate of the UART module is 4 Mbps; however, the default baud rate after power up is
set to 115.2 kbps. The baud rate can thereafter be changed with a VS command. The device responds
with a command complete event (still at 115.2 kbps), after which the baud rate change occurs.
The UART module includes the following features:
• Receiver detection of break, idle, framing, FIFO overflow, and parity error conditions
• Transmitter underflow detection
• CTS and RTS hardware flow control (H4 protocol)
• XON and XOFF software flow control (H5 protocol)
Table 6-2 lists the UART module default settings.
Table 6-2. UART Module Default Settings
PARAMETER
Bit rate
Data length
Stop bit
Parity
VALUE
115.2 kbps
8 bits
1
None
28
Detailed Description
Submit Documentation Feedback
Product Folder Links: CC2564C
Copyright © 2016, Texas Instruments Incorporated