mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 68

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

External Signals
L1RCLKA
MODCK1
MODCK2
USBRXD
SMRXD2
SMTXD2
L1RXDA
SIGNAL
L1TXDA
USBOE
BRGO1
TOUT1
PA[15]
PA[14]
PA[13]
PA[12]
DSDO
IP_B6
IP_B7
RXD2
TXD2
CLK1
CLK2
DSDI
PA[9]
PA[8]
PA[7]
PA[6]
TIN1
TIN3
PTR
OP2
STS
OP3
AT0
AT3
PIN NUMBER
P16
R15
R14
R13
N10
C7
D8
D6
B6
P8
T9
T8
Table 2-1. Signal Descriptions (Continued)
Freescale Semiconductor, Inc.
For More Information On This Product,
Input Port B 6—This input signal is sensed by the MPC823 and its value and
changes are reported in the PIPR and PSCR registers of the PCMCIA interface.
Development Serial Data Input—This input signal is the data in for the debug port
interface.
Address Type 0—This bidirectional three-state signal is driven by the MPC823
when it initiates a transaction on the external bus. If high (1), the transaction is the
CPM. If low (0), the transaction initiator is the core.
Input Port B 7—This input signal is monitored by the MPC823 and its value and
changes are reported in the PIPR and PSCR registers of the PCMCIA interface.
Program Trace—This output signal is asserted by the MPC823 to indicate that an
instruction fetch is taking place in order to allow program flow tracking.
Address Type 3—This bidirectional three-state signal is driven by the MPC823
when it initiates a transaction on the external bus. When the transaction is initiated
by the internal core, it indicates if the transfer is reserved for data transfers or a
program trace indication for instructions fetch.
Mode Clock 1—This input signal is sampled at PORESET negation to configure the
PLL/clock mode of operation.
Output Port 2—This output signal is generated by the MPC823 as a result of a write
to the PGCRB register in the PCMCIA interface.
Special Transfer Start—This output signal is driven by the MPC823 to indicate the
beginning of a transaction on the external bus or an internal transaction in show cycle
mode.
Mode Clock 2—This input signal is sampled at PORESET negation to configure the
PLL/clock mode of operation.
Output Port 3—This output signal is generated by the MPC823 as a result of a write
to the PGCRB register in the PCMCIA interface.
Development Serial Data Output—This output signal is the data out of the debug
port interface.
General-Purpose I/O Port A Bit 15—Bit 15 of the general-purpose I/O port A.
USBRXD—The receive data input signal for the USB.
General-Purpose I/O Port A Bit 14—Bit 14 of the general-purpose I/O port A.
USBOE—The output enable signal for the USB transmitter.
General-Purpose I/O Port A Bit 13—Bit 13 of the general-purpose I/O port A.
RXD2—The receive data input signal for serial communication controller 2.
General-Purpose I/O Port A Bit 12—Bit 12 of the general-purpose I/O port A.
TXD2—The transmit data output signal for serial communication controller 2. TXD2
has open-drain capability.
General-Purpose I/O Port A Bit 11—Bit 9 of the general-purpose I/O port A.
L1TXDA—The transmit data output signal for the serial interface time-division
multiplex port A. This signal has open-drain capability.
SMRXD2—The serial management controller 2 receive data pin.
General-Purpose I/O Port A Bit 8—Bit 8 of the general-purpose I/O port A.
L1RXDA—The receive data input signal for the serial interface time-division
multiplex port A.
SMTXD2—The serial management controller 2 transmit data pin.
General-Purpose I/O Port A Bit 7—Bit 7 of the general-purpose I/O port A.
CLK1—This input signal is one of the four clock pins that can be used to clock the
serial communication controllers, serial management controllers, and USB.
TIN1—The timer 1 external clock pin.
L1RCLKA—The receive clock for the serial interface time-division multiplex port A.
BRGO1—The output clock of BRG1.
General-Purpose I/O Port A Bit 6—Bit 6 of the general-purpose I/O port A.
CLK2—This input signal is one of the four clock pins that can be used to clock the
serial communication controllers, serial management controllers, and USB.
TOUT1—The timer 1 output pin.
TIN3—The timer 3 external clock pin. (except mask base #F98S)
MPC823 REFERENCE MANUAL
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DESCRIPTION
MOTOROLA