2.1 Address And Control Signals; Address Bus (A31-A0); Functional Signal Groups - Motorola M68060 User Manual

ADDRESS BUS
AND CONTROL
DATA BUS
TRANSFER
ATTRIBUTES
MASTER
TRANSFER
CONTROL
SLAVE
TRANSFER
CONTROL

2.1 ADDRESS AND CONTROL SIGNALS

The following paragraphs describe the MC68060 address and control signals.
2.1.1 Address Bus (A31–A0)
These three-state bidirectional signals provide the address of the first item of a bus transfer
(except for interrupt acknowledge transfers) when the MC68060 is the bus master. When an
alternate bus master is controlling the bus and asserts the SNOOP signal, the address sig-
MOTOROLA
A31–A0
CLA
D31–D0
TT1
TT0
TM2
TM1
TM0
TLN1
TLN0
UPA1
UPA0
R/W
MC68060
SIZ1
SIZ0
LOCK
LOCKE
CIOUT
BS0
BS1
BS2
BS3
TS
TIP
SAS
TA
TRA
TEA
TBI
TCI
Figure 2-1. Functional Signal Groups
M68060 USER'S MANUAL
SNOOP
BUS SNOOP CONTROL
BR
BG
BUS ARBITRATION
BGR
CONTROL
BB
BTT
CDIS
MDIS
PROCESSOR
CONTROL
RSTI
RSTO
IPL2
IPL1
INTERRUPT
IPL0
CONTROL
IPEND
AVEC
PST4
PST3
PST2
STATUS AND
PST1
CLOCKS
PST0
CLK
CLKEN
JTAG
TCK
TMS
TEST
TDI
TDO
TRST
THERM1
THERMAL RESISTOR
THERM0
CONNECTIONS
V
CC
POWER SUPPLY
GND
Signal Description
2-3