HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 660

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

21.7.2
In the power-down modes, a command that stops the output of the clock from the RF IC may be
sent to the RF IC. When the clock input from the RF IC is used as the main clock of this LSI, this
LSI is also stopped and the BT is operated by a separately input clock running at 32-kHz or
32.768-kHz. The LSI is equipped with a clock-resume control function to allow it to leave this
mode. The sequence of this clock-resume control is given below.
1. The BT outputs an interrupt signal.
2. The BT issues a wake-up command to the RF-IC.
3. The INTC receives an interrupt.
4. The CPU is activated.
21.8
To configure the upper protocol stack, this LSI supports host controller interface (HCI) and test
control interface (TCI) commands which are defined by version 1.1 of the Bluetooth Specification,
and 53 types of unique TCI commands. For details on the HCI and TCI commands, which
correspond to version 1.1 of the Bluetooth Specification, refer to version 1.1 of the Bluetooth
Specification. When detailed information on unique TCI commands is required, contact our sales
department.
The protocol stack firmware lower than the HCI is provided as a library in this LSI, and this
enables the Bluetooth interface easily to be added to a developed program. In addition, as the
application interface (API) of this library bases on H4 of the Bluetooth Specification, it is easy to
be applied to this LSI. As the API function of this LSI, 9 types of functions are prepared. For
details, contact our sales department.
Rev. 1.00, 02/04, page 622 of 804
Internal reset signal
Internal reset signal
for USB
RF IC output clock
Clock-Resume Control
Bluetooth HCI/TCI Commands and API
RESETP
Figure 21.8 Timing Chart of Reset Signal
256 cycles
1312 cycles