mc68ec060 Freescale Semiconductor, Inc, mc68ec060 Datasheet - Page 49

• Manufacturer Part Number: mc68ec060
• Description: Mc68060 Superscalar 68k Microprocessor Including The Lc060 And Ec060
• Manufacturer: Freescale Semiconductor, Inc

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
AND CONTROL
ADDRESS BUS
ATTRIBUTES
TRANSFER
TRANSFER
TRANSFER
DATA BUS
CONTROL
CONTROL
MASTER
SLAVE
Figure 2-1. Functional Signal Groups
D31–D0
A31–A0
CLA
TT1
TT0
R/W
LOCK
TM2
TM1
TM0
TLN1
TLN0
UPA1
UPA0
LOCKE
CIOUT
TS
TIP
SAS
TA
TRA
TEA
TBI
TCI
SIZ1
SIZ0
BS0
BS1
BS2
BS3
M68060 USER’S MANUAL
MC68060
SNOOP
BR
BG
BGR
BB
BTT
CDIS
MDIS
RSTI
RSTO
IPEND
PST4
PST3
PST2
PST1
PST0
IPL2
IPL1
IPL0
AVEC
CLK
CLKEN
V
GND
JTAG
TCK
TMS
TDI
TDO
TRST
THERM1
THERM0
CC
BUS SNOOP CONTROL
BUS ARBITRATION
CONTROL
PROCESSOR
CONTROL
INTERRUPT
CONTROL
STATUS AND
CLOCKS
TEST
THERMAL RESISTOR
CONNECTIONS
POWER SUPPLY
Signal Description
2-3