mc56f801 Freescale Semiconductor, Inc, mc56f801 Datasheet - Page 18

• Manufacturer Part Number: mc56f801
• Description: 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

2.2 56F8014 Signal Pins
After reset, each pin is configured for its primary function (listed first). Any alternate functionality must
be programmed.
18
1. This signal is also brought out on the GPIOB1 pin.
Return to
GPIOB6
(CLKIN)
(SDA
Signal
V
V
V
(RXD)
Name
V
V
V
DD_IO
SS_IO
SS_IO
DDA
CAP
SSA
1
Table 2-3 56F8014 Signal and Package Information for the 32-Pin LQFP
)
Table 2-2
Pin No.
LQFP
25
14
26
24
32
8
9
Supply
Supply
Supply
Supply
Supply
Output
Output
Input/
Input/
Type
Input
Input
State During
pin is in input
disabled,
enabled,
internal
Supply
Supply
Supply
Supply
Supply
Output
pull-up
Reset
mode
56F8014 Technical Data, Rev. 9
I/O Power — This pin supplies 3.3V power to the chip I/O interface.
V
ADC Power — This pin supplies 3.3V power to the ADC modules. It
must be connected to a clean analog power supply.
ADC Analog Ground — This pin supplies an analog ground to the
ADC modules.
V
order to bypass the core voltage regulator, required for proper chip
operation. See
Port B GPIO — This GPIO pin can be individually programmed as
an input or output pin.
Receive Data — SCI receive data input.
Serial Data — This pin serves as the I
Clock Input — This pin serves as an optional external clock input.
After reset, the default state is GPIOB6. The peripheral functionality
is controlled via the SIM (See
of the OCCS Oscillator Control Register.
SS
CAP
— These pins provide ground for chip logic and I/O drivers.
— Connect this pin to a 4.4μF or greater bypass capacitor in
Section
Signal Description
10.2.1.
Section
2
6.3.8) and the CLKMODE bit
C serial data line.
Freescale Semiconductor
Preliminary