Table of Contents
Advertisement
3.1.6
Serial I/O Interface Signals
Signal Name
Type
CTS [1:0]*
Input
SIO Clear to Send
PU *1
CTS* signals.
The pins are shared with other functions (refer to Section "3.3 Pin Multiplexing").
RTS [1:0]*
Output
SIO Request to Send
PU *1
RTS* signals.
The pins are shared with other functions (refer to Section "3.3 Pin Multiplexing").
RXD[1:0]
Input
SIO Receive Data
PU *1
Serial data input signals.
The pins are shared with other functions (refer to Section "3.3 Pin Multiplexing").
3-state
TXD[1:0]
SIO Transmit Data
Output
Serial data output signals.
PU *1
The pins are shared with other functions (refer to Section "3.3 Pin Multiplexing").
SCLK
Input
External Serial Clock
PU
SIO clock input signal. SIO0 and SIO1 share this signal.
The pin is shared with other functions (refer to Section "3.3 Pin Multiplexing").
These signals are pulled up for channel 0 only. No pull-up resistor is provided for channel 1.
*1:
3.1.7
Timer Interface Signals
Signal Name
Type
TIMER[1:0]
Output
Timer Output
PU
Timer output signals.
The pins are shared with other functions (refer to Section "3.3 Pin Multiplexing").
TCLK
Input
External Timer Clock
PU
Timer input clock signal. TMR0, TMR1, and TMR2 share this signal.
The pin is shared with other functions (refer to Section "3.3 Pin Multiplexing").
3.1.8
Parallel I/O Interface Signals
Signal Name
Type
PIO[31:20]
Input/output
PIO Ports[31:20]
PU
Parallel I/O signals.
The pins are shared with other functions, including PC trace (refer to Section "3.3 Pin
Multiplexing"). The boot configuration signal on the TDO pin determines whether the
signals are used for PC trace.
PIO[19:0]
Input/output
PIO Ports[19:0]
PU *1
Parallel I/O signals.
The pins are shared with other functions (refer to Section "3.3 Pin Multiplexing").
PIO[17:12] do not have pull-up resistors.
*1:
Table 3.1.6 Serial I/O Interface Signals
Description
Table 3.1.7 Timer Interface Signals
Description
Table 3.1.8 Parallel I/O Interface Signals
Description
3-7
Chapter 3 Signals
Initial State
PIO input
PIO input
PIO input
PIO input
PIO input
Initial State
PIO input
PIO input
Initial State
Selected by
TDO
H: PIO input
L: Output
(PC trace
function)
Input
Advertisement
Table of Contents
