
8-44
G2 PowerPC Core Reference Manual
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MOTOROLA
Signal Descriptions
Negated—Causes the core to be configured for 64-bit mode
operation.
Assertion/Negation—This signal is sampled during assertion of
core_hreset and must be stable five cycles before the negation of
core_hreset as defined in the hardware specification.
Timing Comments
8.3.10.3.2 Reduced Pinout Mode (core_redpinmode)—Input
Following are the state meaning and timing comments for the core_redpinmode input.
State Meaning
Asserted—Causes the processor to be configured for reduced pinout
mode operation at core_hreset.
Negated—Causes the core to be configured for normal pinout mode
operation at core_hreset.
Timing Comments
Assertion/Negation—This signal is sampled during assertion of
core_hreset and must be stable five cycles before the negation of
core_hreset as defined in the hardware specification.
8.3.10.3.3 MSR IP Bit Set Mode (core_msrip)—Input
Following are the state meaning and timing comments for the core_msrip input.
State Meaning
Asserted—Causes MSR[IP] to be initialized to a one at core_hreset.
This causes the reset vector to be fetched from address
0xFFFn_nnnn. See Table 2-4 for more information on the operation
of the core when MSR[IP] = 1.
Negated—Causes MSR[IP] to be initialized to zero. This causes the
reset vector to be fetched from address 0x000n_nnnn.
Timing Comments
Assertion/Negation—This signal is sampled during assertion of
core_hreset and must be stable five cycles before the negation of
core_hreset as defined in the hardware specification.
8.3.10.3.4 DRTRY Mode (core_drtrymode)—Input
Following are the state meaning and timing comments for the core_drtrymode input.
State Meaning
Asserted—Causes the core to be configured for normal DRTRY
mode operation at core_hreset.
Negated—Causes the core to be configured for no_DRTRY mode
operation at core_hreset.
Timing Comments
Assertion/Negation—This signal is sampled during assertion of
core_hreset and must be stable five cycles before the negation of
core_hreset as defined in the hardware specification.
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