MC68EC040RC20A Freescale Semiconductor, MC68EC040RC20A Datasheet - Page 399

• Manufacturer Part Number: MC68EC040RC20A
• Description: IC MPU 32BIT 20MHZ 179-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68EC040RC20A

• Processor Type: M680x0 32-Bit
• Speed: 20MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 179-PGA
• Lead Free Status / RoHS Status: Contains lead / RoHS Compliant
• Features: -

C.2 LOW-POWER STOP MODE
The low-power stop mode is a reduced power mode of operation, that causes the
MC68040V and MC68EC040V to remain quiescent until either a reset or non-masked
interrupt occurs. This mode of operation has four phases of operation and is triggered by
the low-power stop (LPSTOP) instruction:
MOTOROLA
1. Perform a LPSTOP broadcast cycle.
2. End integer unit (IU) instruction pipeline sequencing, which is similar to the STOP
instruction sequence (IMM data ˘ SR), at termination of the LPSTOP broadcast
cycle.
Figure C-1. MC68040V and MC68EC040V Functional Signal Groups
ATTRIBUTES
NOTE: *This signal is JS1 on the MC68EC040V.
TRANSFER
TRANSFER
TRANSFER
DATA BUS
CONTROL
ADDRESS
CONTROL
MASTER
SLAVE
BUS
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D31–D0
A31–A0
TT0
TT1
R/W
LOCK
CIOUT
TM0
TM1
TM2
TLN0
TLN1
UPA0
UPA1
SIZ0
SIZ1
LOCKE
TS
TIP
TA
TEA
TCI
TBI
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M68040 USER’S MANUAL
MC68EC040V
MC68040V
SC0
SC1
M I
BR
BG
BB
CDIS
MDIS*
RSTI
RSTO
IPEND
IPL0
IPL1
IPL2
AVEC
PST0
PST1
PST2
PST3
BCLK
SCD
LOC
LFO
V
GND
TCK
TMS
TDI
TDO
JS0
JS2
CC
BUS SNOOP CONTROL
AND RESPONSE
BUS ARBITRATION
PROCESSOR
CONTROL
INTERRUPT
CONTROL
STATUS AND
CLOCKS
TEST
POWER SUPPLY
C-3