Freescale Semiconductor 56F8122 - Manual (Page 24)

56F8322 Techncial Data, Rev. 10.0
24 Freescale Semiconductor
Preliminary
V
REFP
28 Input/
Output
Input/
Output
V
REFP
, V
REFMID
& V
REFN
— Internal pins for voltage reference which
are brought off-chip so that they can be bypassed. Connect to a 0.1
µ
F
ceramic low ESR capacitor. V
REFMID
27
V
REFN
26
CAN_RX
(GPIOC2)
46 Schmitt
Input
Schmitt
Input/
Output
Input
Input
FlexCAN Receive Data — This is the CAN input. This pin has an
internal pull-up resistor.
Port C GPIO — This GPIO pin can be individually programmed as an
input or output pin.
In the 56F8322, the default state after reset is CAN_RX.
In the 56F8122, the default state is not one of the functions offered
and must be reconfigured.
CAN_TX
(GPIOC3)
47 Output
Schmitt
Input/
Output
Tri-stated
Input
FlexCAN Transmit Data — CAN output
Port C GPIO — This GPIO pin can be individually programmed as an
input or output pin.
In the 56F8322, the default state after reset is CAN_TX.
In the 56F8122, the default state is not one of the functions offered
and must be reconfigured.
TC0
(TXD0)
(GPIOC6)
1 Schmitt
Input/
Output
Schmitt
Input
Schmitt
Input/
Output
Input
Tri-stated
Input
TC0 — Timer C, Channel 0
Transmit Data — SCI0 transmit data output
Port C GPIO — This GPIO pin can be individually programmed as an
input or output pin.
After reset, the default state is TC0.
TC1
(RXD0)
(GPIOC5)
48 Schmitt
Input/
Output
Output
Schmitt
Input/
Output
Input
Input
Input
TC1 — Timer C, Channel 1
Receive Data — SCI0 receive data input
Port C GPIO — This GPIO pin can be individually programmed as an
input or output pin.
After reset, the default state is TC1.
Table 2-2 Signal and Package Information for the 48-Pin LQFP
Signal Name Pin No. Type
State During
Reset
Signal Description