MC68030 Datasheet, PDF (129/602 Pages) Motorola, Inc – ENHANCED 32-BIT MICROPROCESSOR

Signal Description
Signal Function
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
Synchronous Termination
Cache Inhibit In
Cache Inhibit Out
Cache Burst Request
Cache Burst Acknowledge
Interrupt Priority Level
Interrupt Pending
Autovector
Bus Request
Bus Grant
Bus Grant Acknowledge
Reset
Halt
Bus Error
Cache Disable
MMU Disable
Pipeline Refill
Microsequencer Status
Clock
Power Supply
Ground
Table 5-2. Signal Summary
Signal Name
FC0–FC2
A0–A31
D0–D31
SIZ0/SIZ1
OCS
ECS
R/W
RMC
AS
DS
DBEN
DSACK0/
DSACK1
STERM
CIIN
CIOUT
CBREQ
CBACK
IPL0–IPL2
IPEND
AVEC
BR
BG
BGACK
RESET
HALT
BERR
CDIS
MMUDIS
REFILL
STATUS
CLK
VCC
GND
Input/Output
Output
Output
Input/Output
Output
Output
Output
Output
Output
Output
Output
Output
Input
Input
Input
Output
Output
Input
Input
Output
Input
Input
Output
Input
Input/Output
Input
Input
Input
Input
Output
Output
Input
Input
Input
Active State
High
High
High
High
Low
Low
High/Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
—
—
—
Three-State
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
—
—
—
Yes
Yes
—
—
No
—
—
No
—
No
—
—
—
—
No
No
—
—
—
5-12
MC68030 USER’S MANUAL
MOTOROLA