Spectrum Signal Processing
Monaco Technical Reference
Introduction
Part Number 500-00191
5
Revision 2.00
1.6. Reset
Conditions
The Monaco board responds to three types of reset conditions:
•
VME SYSRESET (VME bus /SYSRESET line)
•
VME A24 Slave Interface Reset (VME A24 Control Register bit D0)
•
JTAG reset (JTAG chain /TRST line)
The following table indicates which hardware components are reset by the specific reset
condition.
Table 1 Reset Summary
Reset Condition (Y = Component is Reset)
Hardware
SYSRESET
Slave Interface Reset
JTAG Reset
Processor Nodes
Y
Y
SCV64 VME Interface chip
Y
HPI registers
Y
Y
Global Shared Bus registers
Y
Y
VME A24 slave interface registers
Y
Y
JTAG (within DSPs)
Y
Y
Y
PEM interface
Y
Y
PMC interface
Y
Y
DSP~LINK3 interface
Y
Y
1.6.1. VME SYSRESET
A VME SYSRESET is initiated when the /SYSRESET line on the VME bus is driven
low. All devices and registers on the Monaco board are reset to their default conditions.
1.6.2. VME A24 Slave Interface Reset
The VME A24 slave interface reset is initiated from the VME bus by setting bit D0 of
the VME A24 Control Register to “0”. All devices and registers on the Monaco board
are reset to their default conditions except for the SCV64 VME interface chip. The
VME A24 Control Register is located at VME A24 Base A 1004h. The base
address for the VME A24 slave interface is set by jumper block JP1.
1.6.3. JTAG Reset
The JTAG path can be reset by asserting the /TRST line of the JTAG chain by an
EMURST from the XDS or TBC. Only the JTAG path of the DSPs is reset by this
action; no other devices or registers on the board are affected.
Содержание Monaco Quad 'C6x VME64
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