
56F8033/56F8023 Data Sheet, Rev. 6
28
Freescale Semiconductor
GPIOB6
(RXD0)
(SDA11)
(CLKIN)
1
Input/
Output
Input
Input/
Output
Input
Input,
internal
pull-up
enabled
Port B GPIO — This GPIO pin can be individually programmed as
an input or output pin.
Receive Data 0 — QSCI0 receive data input.
Serial Data — This pin serves as the I2C serial data line.
External Clock Input — This pin serves as an external clock input.
After reset, the default state is GPIOB6. The peripheral functionality
of the OCCS Oscillator Control Register.
11The SDA signal is also brought out on the GPIOB1 pin.
GPIOB7
(TXD0)
(SCL12)
3
Input/
Output
Input/
Output
Input/
Output
Input,
internal
pull-up
enabled
Port B GPIO — This GPIO pin can be individually programmed as
an input or output pin.
Transmit Data 0 — QSCI0 transmit data output or transmit/receive
in single wire operation.
Serial Clock — This pin serves as the I2C serial clock.
After reset, the default state is GPIOB7. The peripheral functionality
12The SCL signal is also brought out on the GPIOB0 pin.
GPIOC0
(ANA0 &
CMPAI3)
12
Input/
Output
Analog
Input
Port C GPIO — This GPIO pin can be individually programmed as
an input or output pin.
ANA0 — Analog input to ADC A, Channel 0.
Comparator A, Input 3 — This is an analog input to Comparator A.
When used as an analog input, the signal goes to both the ANA0
and CMPAI3.
After reset, the default state is GPIOC0.
Table 2-3 56F8033/56F8023 Signal and Package Information for the 32-Pin LQFP
Signal
Name
LQFP
Pin No.
Type
State During
Reset
Signal Description