Emerson PMT1 사용자 설명서
10002367-02
PmT1 and PmE1 User’s Manual
5-1
Section 5
Serial I/O
The PmT1 and PmE1 module has six TTL serial ports that are supplied by the MPC860P Pow-
erQUICC™. The MPC860P supports the serial ports with the following features:
erQUICC™. The MPC860P supports the serial ports with the following features:
• Communications Processor Module (CPM), which includes a RISC controller, 224 buffer
descriptors, continuous mode transmission and reception on all serial channels, dual-
port RAM, fourteen serial DMA (SDMA) channels, and NMSI mode (each serial channel
can have its own pins)
port RAM, fourteen serial DMA (SDMA) channels, and NMSI mode (each serial channel
can have its own pins)
• Four serial communication controllers (SCCs)
• Two serial management controllers (SMCs) for the console and download serial ports
• Four baud rate generators that are independent (i.e., can be connected to any SCC or
SMC), allow changes during operation, and have autobaud support
• Protocols in firmware for asynchronous/synchronous UARTs, HDLC, and SS7
For detailed descriptions of the MPC860P features and examples of how to implement
them, refer to the MPC860 PowerQUICC™ User’s Manual.
them, refer to the MPC860 PowerQUICC™ User’s Manual.
THE COMMUNICATIONS PROCESSOR MODULE
The physical base address of the MPC860P is FF00,0000
16
. The following table shows the
register block map for the CPM portion of the MPC860P. Please refer to the MPC860 Power-
QUICC™ User’s Manual for descriptions of the registers in each register block.
QUICC™ User’s Manual for descriptions of the registers in each register block.
Table 5-1:
MPC860P CPM Register Block Map
Physical Address (hex):
Acronym:
Register Block Name:
FF00,0930
—
CPM Interrupt Control
FF00,0950
—
Input/Output Port
FF00,0980
—
CPM Timers
FF00,09C0
—
Communication Processor
FF00,09F0
BRG
Baud Rate Generators
FF00,0A00
SCC1
Serial Communications Controller 1
FF00,0A20
SCC2
Serial Communications Controller 2
FF00,0A40
SCC3
Serial Communications Controller 3
FF00,0A60
SCC4
Serial Communications Controller 4
FF00,0A82
SMC1
Serial Management Controller 1
FF00,0A9
SMC2
Serial Management Controller 2
FF00,0A82
—
reserved
FF00,0AE0
SI
Serial Interface