C8051F380/1/2/3/4/5/6/7/C
Port
P0
P1
P2
P3
Pin Number 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7
SF Signals
(32-pin
Package)
P3.1-P3.7
Unavailable on 32-pin
packages
SF Signals
(48-pin
Package)
TX0
RX0
SCK
MISO
MOSI
NSS*
SDA
SCL
CP0
CP0A
CP1
CP1A
SYSCLK
CEX0
CEX1
CEX2
CEX3
CEX4
ECI
T0
T1
TX1
RX1
SDA1
SCL1
Pin Skip 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Settings
P0SKIP
P1SKIP
P2SKIP
P3SKIP
The crossbar peripherals are assigned in priority order from top to bottom, according to this diagram.
These boxes represent Port pins which can potentially be assigned to a peripheral.
Special Function Signals are not assigned by the crossbar. When these signals are enabled, the Crossbar should be
manually configured to skip the corresponding port pins.
Pins can be “skipped” by setting the corresponding bit in PnSKIP to 1.
* NSS is only pinned out when the SPI is in 4-wire mode.
Figure 20.3. Peripheral Availability on Port I/O Pins
Rev. 1.4
155