MC68EC020FG25 Freescale Semiconductor, MC68EC020FG25 Datasheet - Page 43
MC68EC020FG25
Manufacturer Part Number
MC68EC020FG25
Description
IC MPU 32 BIT 25MHZ 100-QFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68EC020AA16.pdf
(306 pages)
Specifications of MC68EC020FG25
Processor Type
M680x0 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
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3.13 SIGNAL SUMMARY
Table 3-2 provides a summary of the characteristics of the signals discussed in this
section. Signal names preceded by an asterisk (*) are implemented in the MC68020 and
not implemented in the MC68EC020.
*
**
3- 8
Function Codes
Address Bus
Data Bus
Transfer Size
*Operand Cycle Start
*External Cycle Start
Read/Write
Read-Modify-Write Cycle
Address Strobe
Data Strobe
*Data Buffer Enable
Data Transfer and Size Acknowledge
Interrupt Priority Level
*Interrupt Pending
Autovector
Bus Request
Bus Grant
*Bus Grant Acknowledge
Reset
Halt
Bus Error
Cache Disable
Clock
Power Supply
Ground
This signal is implemented in the MC68020 and not implemented in the MC68EC020.
Open-drain
MC68020
MC68EC020
Signal Function
Table 3-2. Signal Summary
M68020 USER’S MANUAL
DSACK1, DSACK0
Signal Name
SIZ1, SIZ0
IPL2–IPL0
FC2–FC0
A31–A0
A23–A0
D31–D0
BGACK
RESET
IPEND
AVEC
HALT
DBEN
BERR
RMC
CDIS
GND
OCS
CLK
V
ECS
R/ W
DS
BR
BG
AS
CC
Input/Output
Input/Output
Input/Output
Input/Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Active State
High/Low
High
High
High
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
—
—
—
Three-State
MOTOROLA
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
—
—
—
—
—
—
—
—
—
—
**
**
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