LAN91C96I Datasheet, PDF (29/110 Pages) SMSC Corporation – NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER

Non-PCI Single-Chip Full Duplex Ethernet Controller
LAN91C96I Power Down States
Table 5.5 - Local Bus Mode Defined States (Refer To Table 5.6 For Next States To Wake-Up Events)
NO.
PWRDWN PIN
(A= ASSRTD)
1
A
2
nA
3
nA
4
nA
5
nA
Notes:
ECOR
FUNCTION
ENABLE
X
X
X
X
X
ECSR
POWER
DOWN
X
0
0
0
0
CURRENT STATE
CTR
PWRDWN
BIT
CTR
WAKEUP_EN
BIT
X
X
0
0
0
1
1
1
1
0
POWERS
DOWN
Everything.
Asserts the
modem power
down pin
(nPWDN) also
Ethernet Tx
Ethernet Tx,
Rx, Link
Ethernet Tx,
Rx, Link
ƒ The chart assumes that ECOR Function Enable bit is meaningless in Local Bus mode.
DOES NOT POWER
DOWN
Ethernet Tx, Rx, Link
Ethernet Rx, Link
ƒ ECSR Power Down bit must not be set to one(1) in Local Bus mode.
Table 5.6 - Local Bus Mode
NEXT STATE
NO.
WAKES UP BY
PWR DWN
PIN
(A=ASSRTD)
ECOR
FUCNTION
ENABLE
ECSR
POWER
DOWN
CTR PWR-
DWN BIT
CTR
WAKEUP
_EN BIT
1
PWRDWN Pin
deassertion
nA
No change
No
No change
No
change
change
2
nA
3
By writing a 0 to
nA
CTR WAKEUP_EN
bit
4
By writing a 0 to
nA
CTR WAKEUP_EN
bit AND CTR
PWRDWN bit = 0
X
0
0
0
X
0
0
0
X
0
0
0
5
By writing 0 to CTR
nA
PWRDWN bit
Notes:
X
0
0
0
ƒ The chart assumes that ECOR Function Enable bit is meaningless in Local Bus mode.
COMMENTS
ECOR Function
Enable Bit value
is meaningless in
Local Bus mode
Fully Awake
The CTR
PWRDWN bit
has precedence
unlike the
LAN91C95
ƒ ECSR Power Down bit must not be set to one (1) in Local Bus mode.
SMSC DS – LAN91C96I
Page 29
DATASHEET
Rev. 11/18/2004