CC2564MODN Datasheet, PDF (10/62 Pages) Texas Instruments – Bluetooth Host Controller Interface (HCI) Module

CC2564MODN, CC2564MODA
SWRS160D – FEBRUARY 2014 – REVISED DECEMBER 2015
nSHUTD
VDD_IO
20 µS max
Shut down
before
VDD_IO
removed
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VDD_IN
slow clock
2 ms max
HCI_RTS
±100 ms
CC256x ready
Figure 4-1. Power-Up and Power-Down Sequence
SWRS160-008
4.7.1.3 Power Supplies and Shutdown – Static States
The nSHUTD signal puts the device in ultra-low power mode and performs an internal reset to the device.
The rise time for nSHUTD must not exceed 20 μs; nSHUTD must be low for a minimum of 5 ms.
To prevent conflicts with external signals, all I/O pins are set to the high-impedance (Hi-Z) state during
shutdown and power up of the device. The internal pull resistors are enabled on each I/O pin, as
described in Section 3.2, Pin Attributes. Table 4-1 describes the static operation states.
Table 4-1. Power Modes
VDD_IN ⁽¹⁾
VDD_IO ⁽¹⁾
nSHUTD ⁽¹⁾
PM_MODE
COMMENTS
1
None
None
Asserted
Shut down
I/O state is undefined. I/O voltages are
not allowed on nonfail-safe pins.
2
None
None
Deasserted
Not allowed
I/O state is undefined. I/O voltages are
not allowed on nonfail-safe pins.
3
None
Present
Asserted
Shut down
I/Os are defined as 3-state with internal
pullup or pulldown enabled.
4
None
Present
Deasserted
Not allowed
I/O state is undefined. I/O voltages are
not allowed on nonfail-safe pins.
5
Present
None
Asserted
Shut down I/O state is undefined.
6
Present
None
Deasserted
Not allowed
I/O state is undefined. I/O voltages are
not allowed on nonfail-safe pins.
7
Present
Present
Asserted
Shut down
I/Os are defined as 3-state with internal
pullup or pulldown enabled.
8
Present
Present
Deasserted
Active
See Section 4.7.1.4, I/O States in
Various Power Modes
(1) The terms None or Asserted can imply any of the following conditions: directly pulled to ground or driven low, pulled to ground through a
pulldown resistor, or left NC or floating (high-impedance output stage).
10
Specifications
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