MC68030CRC25C Freescale Semiconductor, MC68030CRC25C Datasheet - Page 239
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MC68030CRC25C
Manufacturer Part Number
MC68030CRC25C
Description
IC MPU 32BIT ENHANCED 128-PGA
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68030FE20C.pdf
(599 pages)
Specifications of MC68030CRC25C
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
128-PGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
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7
7-78
for both of them is met for the same falling edge of the processor clock.
The acceptable bus cycle terminations for asynchronous cycles are sum-
Table 7-8):
To properly control termination of a bus cycle for a retry or a bus error
condition, DSACKx, BERR, and HALT can be asserted and negated with the
asserted simultaneously, the required setup time (#47A) and hold time (#47B)
(Refer to MC68030EC/D,
external circuitry that provides these signals.
marized in relation to DSACKx assertion as follows (case numbers refer to
rising edge of the MC68030 clock. This assures that when two signals are
ments.) This or some equivalent precaution should be designed into the
Normal Termination:
Halt Termination:
Bus Error Termination:
Retry Termination:
3) or after DSACKx (case 4), and HALT remains negated; BERR is
DSACKx is asserted; BERR and HALT remain negated (case 1).
negated at the same time or after DSACKx.
same time or after DSACKx; HALT may be negated at the same time
or after BERR.
HALT is asserted at same time or before DSACKx, and BERR remains
negated (case 2).
BERR is asserted in lieu of, at the same time, or before DSACKx (case
HALT and BERR are asserted in lieu of, at the same time, or before
DSACKx (case 5) or after DSACKx (case 6); BERR is negated at the
MC68030 USER'S MANUAL
MC68030 Electrical Specifications
for timing require-
MOTOROLA
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