XC886/888CLM
Parallel Ports
User’s Manual
6-13
V1.3, 2010-02
Parallel Ports, V 1.0
6.3
Port 0
Port P0 is a 8-bit general purpose bidirectional port. The registers of P0 are summarized
in
.
6.3.1
Functions
Port 0 input and output functions are shown in
.
Table 6-3
Port 0 Registers
Register Short Name
Register Full Name
P0_DATA
Port 0 Data Register
P0_DIR
Port 0 Direction Register
P0_OD
Port 0 Open Drain Control Register
P0_PUDSEL
Port 0 Pull-Up/Pull-Down Select Register
P0_PUDEN
Port 0 Pull-Up/Pull-Down Enable Register
P0_ALTSEL0
Port 0 Alternate Select Register 0
P0_ALTSEL1
Port 0 Alternate Select Register 1
Table 6-4
Port 0 Input/Output Functions
Port Pin
Input/Output Select
Connected Signal(s)
From/to Module
P0.0
Input
GPI
P0_DATA.P0
–
ALT1
TCK_0
JTAG
ALT2
T12HR_1
CCU6
ALT3
CC61_1
CCU6
Output
GPO
P0_DATA.P0
–
ALT1
CLKOUT
Clock Output
ALT2
CC61_1
CCU6
ALT3
RXDO_1
UART
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