MC9328MX1_06 Datasheet, PDF (10/100 Pages) Freescale Semiconductor, Inc – MX Family of applications processors

Signals and Connections
Table 2. i.MX1 Signal Descriptions (Continued)
Signal Name
BT4
BT5
BT6
BT7
BT8
BT9
BT10
BT11
BT12
BT13
BTRF VDD
BTRF GND
TRISTATE
NVDD
NVSS
AVDD
QVDD
QVSS
Function/Notes
Input
Output
Output
Output
Output
Output
Output
Output
Output
Output
Power supply from external BT RFIC
Ground from external BT RFIC
Test Function
Forces all I/O signals to high impedance for test purposes. For normal operation, terminate this input
with a 1 k ohm resistor to ground. (TRI-STATE^® is a registered trademark of National Semiconductor.)
Digital Supply Pins
Digital Supply for the I/O pins
Digital Ground for the I/O pins
Supply Pins – Analog Modules
Supply for analog blocks
Internal Power Supply
Power supply pins for silicon internal circuitry
Ground pins for silicon internal circuitry
2.1 I/O Pads Power Supply and Signal Multiplexing Scheme
This section describes detailed information about both the power supply for each I/O pin and its function
multiplexing scheme. The user can reference information provided in Table 6 on page 23 to configure the
power supply scheme for each device in the system (memory and external peripherals). The function
multiplexing information also shown in Table 6 allows the user to select the function of each pin by
configuring the appropriate GPIO registers when those pins are multiplexed to provide different functions.
MC9328MX1 Technical Data, Rev. 7
10
Freescale Semiconductor