Signal Descriptions
5-38
MPC821FADS-DB USER’S MANUAL
MOTOROLA
B28
USBTXP
I/O
Universal Serial Bus Transmit Positive signal. PC7 on the MPC821.
See PM3(20).
B29
L1RSYNCB
I/O
Receive Sync signal for TDM B. See PM3(100).
B30
PC5
I/O
Port C Bit 5. See PM3(99).
B31
L1RSYNCA
I/O
Receive Sync signal for TDM A. See PM3(98).
B32
GND
—
C1
VCC
—
C2
C3
C4
C5
C6
RS_EN2
O, L
RS-232 Enable 2 signal. See PM3(102).
C7
GND
—
C8
C9
C10
C11
C12
C13
C14
C15
LD8
I/O
LCD Data line 8. See PM3(121).
C16
LD7
I/O
LCD Data line 7. See PM3(120).
C17
LD6
I/O
LCD Data line 6. See PM3(119).
C18
LD5
I/O
LCD Data line 5. See PM3(118).
C19
LD0
I/O
LCD Data line 0 signal. See PM3(113).
C20
LOE
I/O
LCD Output Enable signal. See PM3(110).
C21
VCC
—
C22
HRESET
I/O, L
Hard Reset signal. See PM2(84).
C23
SRESET
I/O, L
Soft Reset signal. See PM2(80).
C24
—
—
Not connected.
C25
VCC
—
C26
SHIFT_C
I/O
Shift Clock signal. See PM3(103)
C27
VPPIN
I/O
Voltage Protection Input signal. The +12V input for PCMCIA flash
programming. Parallel to P7 of the MPC8xxFADS.
C28
C29
GND
—
Table 5-14. P13 Interconnect Signals (Continued)
PIN
SIGNAL
INPUT/
OUTPUT
DESCRIPTION
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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