Motorola MC68030 User Manual page 129

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
5-12
Table 5-2. Signal Summary
Signal Name Input/Output
FC0–FC2 Output
A0–A31 Output
D0–D31 Input/Output
SIZ0/SIZ1 Output
OCS Output
ECS Output
R/W Output
RMC Output
AS Output
DS Output
DBEN Output
DSACK0/ Input
DSACK1
STERM Input
CIIN Input
CIOUT Output
CBREQ Output
CBACK Input
IPL0–IPL2 Input
IPEND Output
AVEC Input
BR Input
BG Output
BGACK Input
RESET Input/Output
HALT Input
BERR Input
CDIS Input
MMUDIS Input
REFILL Output
STATUS Output
CLK Input
VCC Input
GND Input
MC68030 USER'S MANUAL
Active State Three-State
High Yes
High Yes
High Yes
High Yes
Low No
Low No
High/Low Yes
Low Yes
Low Yes
Low Yes
Low Yes
Low —
Low —
Low —
Low Yes
Low Yes
Low —
Low —
Low No
Low —
Low —
Low No
Low —
Low No
Low —
Low —
Low —
Low —
Low No
Low No
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