mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 70

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

External Signals
USBRXP
USBRXN
USBTXP
USBTXN
TGATE1
TGATE1
SIGNAL
DREQ1
DREQ2
LCD_B
LCD_C
L1RQA
L1RQA
PB[19]
L1ST1
PB[18]
L1ST2
PB[17]
L1ST3
PB[16]
L1ST4
PC[15]
L1ST5
PC[14]
L1ST6
PC[13]
L1ST7
PC[12]
L1ST8
PC[11]
PC[10]
RTS2
RTS2
RTS3
PC[9]
CTS2
PC[8]
PC[7]
PC[6]
CD2
PIN NUMBER
R16
P13
R10
T16
T13
R7
P7
N7
R5
P9
R8
N8
N6
T5
Table 2-1. Signal Descriptions (Continued)
Freescale Semiconductor, Inc.
For More Information On This Product,
General-Purpose I/O Port B Bit 19—Bit 19 of the general-purpose I/O port B.
L1ST1—One of eight output strobes that can be generated by the serial interface.
LCD_B—This is one of the LCD controller’s three extension data bits, which are
used to drive an active LCD panel. When using a 12-bit bus instead of a 9-bit bus,
the LCD_B signal is the least-significant bit of the green 4-bit code. The green portion
of the bus consists of LD[3:5] and LCD_B.
General-Purpose I/O Port B Bit 18—Bit 18 of the general-purpose I/O port B.
RTS2—The Request To Send modem signal for serial communication controller 2.
L1ST2—One of eight output strobes that can be generated by the serial interface.
General-Purpose I/O Port B Bit 17—Bit 17 of the general-purpose I/O port B.
L1ST3—One of eight output strobes that can be generated by the serial interface.
LCD_C—This is one of the LCD controller’s three extension data bits, which are
used to drive an active LCD panel. When using a 12-bit bus instead of a 9-bit bus,
the LCD_C signal is the least-significant bit of the blue 4-bit code. The blue portion
of the bus consists of LD[6:8] and LCD_C.
General-Purpose I/O Port B Bit 16—Bit 16 of the general-purpose I/O port B.
L1RQA—The D-channel request signal for the serial interface time-division multiplex
port A.
L1ST4—One of eight output strobes that can be generated by the serial interface.
General-Purpose I/O Port C Bit 15—Bit 15 of the general-purpose I/O port C.
DREQ1—The IDMA channel 1 request input signal.
L1ST5—One of eight output strobes that can be generated by the serial interface.
General-Purpose I/O Port C Bit 14—Bit 14 of the general-purpose I/O port C.
DREQ2—The IDMA channel 2 request input signal.
RTS2—The Request To Send modem signal for serial communication controller 2.
L1ST6—One of eight output strobes that can be generated by the serial interface.
General-Purpose I/O Port C Bit 13—Bit 13 of the general-purpose I/O port C.
L1ST7—One of eight output strobes that can be generated by the serial interface.
RTS3—The Request To Send modem signal for serial communication controller 3.
General-Purpose I/O Port C Bit 12—Bit 12 of the general-purpose I/O port C.
L1RQA—The D-channel request signal for the serial interface time-division multiplex
port A.
L1ST8—One of eight output strobes that can be generated by the serial interface.
General-Purpose I/O Port C Bit 11—Bit 11 of the general-purpose I/O port C.
USBRXP—Used with USBRXN, this signal is used by the USB to detect a
single-ended zero and the interconnection speed.
General-Purpose I/O Port C Bit 10—Bit 10 of the general-purpose I/O port C.
TGATE1—The timer1/timer2 gate signal.
USBRXN—Used with USBRXP, this signal is used by the USB to detect a
single-ended zero and the interconnection speed.
General-Purpose I/O Port C Bit 9—Bit 9 of the general-purpose I/O port C.
CTS2—The Clear to Send Modem line for serial communication controller 2.
General-Purpose I/O Port C Bit 8—Bit 8 of the general-purpose I/O port C.
CD2—The Carrier Detect Modem line for serial communication controller 2.
TGATE1—The timer1/timer2 gate signal.
General-Purpose I/O Port C Bit 7—Bit 7 of the general-purpose I/O port C.
USBTXP—This output signal, in conjunction with USBTXN, are the transmit lines of
the USB.
General-Purpose I/O Port C Bit 6—Bit 6 of the general-purpose I/O port C.
USBTXN—This output signal, in conjunction with USBTXP, are the transmit lines of
the USB.
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
DESCRIPTION
MOTOROLA