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Central Processing Unit:
Communications Processor Module
Pm8560 User’s Manual
10006609-03
3-4
COMMUNICATIONS PROCESSOR MODULE (CPM)
Timers
The general purpose timers can be configured as four 16-bit or two 32-bit identical timers.
The main features include:
• The maximum input clock is the internal CPM clock divided by three
• Maximum period of 2.6 seconds with 10 nanosecond resolution (at 100 MHz)
• Programmable sources for the clock input
• Two timers cascade internally or externally to form a 32-bit timer
Interrupt Controller
The CPM interrupt controller receives interrupts from internal sources (for example FCCs,
SCCs, or timers), and from external pins (port C[0:15]) as shown in
Fig. 3-1
. The internal
interrupt sources may each be assigned to a particular interrupt level in software. Interrupt
levels may be programmed for logic low or negative edge assertion. The interrupt controller
combines all the sources into a single interrupt output to the Programmable Interrupt Con-
troller (PIC).
Figure 3-1:
CPM Interrupt Structure
Interrupt Controller
Timer1
MCC1
MCC2
FCC1
FCC2
FCC3
SCC1
SCC2
SCC3
SCC4
SPI
I2C
Port C[0:15]
PIC
INT
Timer2
Timer3
Timer4
System Bus SDMA
RISC Timer
TC Layers
Edge/
Fall
Local Bus SDMA
e500 Core Interface
Summary of Contents for Pm8560
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Page 62: ...TDM Interface Rear Panel I O Connector P14 Pm8560 User s Manual 10006609 03 6 8 ...
Page 72: ...PCI Bus Interface PMC Connector Pin Assignments Pm8560 User s Manual 10006609 03 7 10 ...
Page 112: ...Development Mezzanine Card Troubleshooting Pm8560 User s Manual 10006609 03 10 12 ...
Page 138: ...Monitor Download Formats Pm8560 User s Manual 10006609 03 11 26 ...
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