3 - 5
111
89
PE3 or
RXD0OUT
I/O/Z
I
(PE3)
Multiplexed pin whose function is selected by the PORTECFG.3 bit.
PE3
is a bidirectional I/O port pin.
RXD0OUT
is an active-HIGH signal from 8051 UART0. If
RXD0OUT is selected and UART0 is in Mode 0, this pin provides
the output data for UART0 only when it is in sync mode. Otherwise
it is a 1.
112
90
PE4 or
RXD1OUT
I/O/Z
I
(PE4)
Multiplexed pin whose function is selected by the PORTECFG.4 bit.
PE4
is a bidirectional I/O port pin.
RXD1OUT
is an active-HIGH output from 8051 UART1. When
RXD1OUT is selected and UART1 is in Mode 0, this pin provides
the output data for UART1 only when it is in sync mode. In Modes
1, 2, and 3, this pin is HIGH.
113
91
PE5 or
INT6
I/O/Z
I
(PE5)
Multiplexed pin whose function is selected by the PORTECFG.5 bit.
PE5
is a bidirectional I/O port pin.
INT6
is the 8051 INT5 interrupt request input signal. The INT6 pin
is edge-sensitive, active HIGH.
114
92
PE6 or
T2EX
I/O/Z
I
(PE6)
Multiplexed pin whose function is selected by the PORTECFG.6 bit.
PE6
is a bidirectional I/O port pin.
T2EX
is an active-high input signal to the 8051 Timer2. T2EX re-
loads timer 2 on its falling edge. T2EX is active only if the EXEN2
bit is set in T2CON.
115
93
PE7 or
GPIFADR8
I/O/Z
I
(PE7)
Multiplexed pin whose function is selected by the PORTECFG.7 bit.
PE7
is a bidirectional I/O port pin.
GPIFADR8
is a GPIF address output pin.
4
3
8
1
RDY0 or
SLRD
Input
N/A
Multiplexed pin whose function is selected by the following bits:
IFCONFIG[1..0].
RDY0
is a GPIF input signal.
SLRD
is the input-only read strobe with programmable polarity
(FIFOPOLAR.3) for the slave FIFOs connected to FDI[7..0] or
FDI[15..0].
5
4
9
2
RDY1 or
SLWR
Input
N/A
Multiplexed pin whose function is selected by the following bits:
IFCONFIG[1..0].
RDY1
is a GPIF input signal.
SLWR
is the input-only write strobe with programmable polarity
(FIFOPOLAR.2) for the slave FIFOs connected to FDI[7..0] or
FDI[15..0].
6
5
RDY2
Input
N/A
RDY2
is a GPIF input signal.
7
6
RDY3
Input
N/A
RDY3
is a GPIF input signal.
8
7
RDY4
Input
N/A
RDY4
is a GPIF input signal.
9
8
RDY5
Input
N/A
RDY5
is a GPIF input signal.
69
54
36
29
CTL0 or
FLAGA
Output
H
Multiplexed pin whose function is selected by the following bits:
IFCONFIG[1..0].
CTL0
is a GPIF control output.
FLAGA
is a programmable slave-FIFO output status flag signal.
Defaults to programmable for the FIFO selected by the
FIFOADR[1:0] pins.
70
55
37
30
CTL1 or
FLAGB
Output
H
Multiplexed pin whose function is selected by the following bits:
IFCONFIG[1..0].
CTL1
is a GPIF control output.
FLAGB
is a programmable slave-FIFO output status flag signal.
Defaults to FULL for the FIFO selected by the FIFOADR[1:0] pins.
Table 4-1. FX2 Pin Descriptions
[5]
(continued)
128
TQFP
100
TQFP
56
SSOP
56
QFN
Name
Type
Default
Description
PIN DESCRIPTIONS OF IC CY7C68013