Extended Temperature 82439TX (MTXC) Datasheet
77
PRELIMINARY
Table 3: MTXC Pin States in Various System Modes
MTXC Signals
Host
Interface
Power
Plane
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
VCC(CPU)
Type
I/O
I
I
O
O
O
O
O
I
I
I
I
O
I
I/O
Buffer*
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
3.3/2.5V
During
Reset
Low**
Input
Input
High
High
High
High
High
Input
Input
Input
Input
Low
Input
Hi-Z
After
Reset
Hi-Z
Input
Input
High
High
Low
High
High
Input
Input
Input
Input
Low
Input
Hi-Z
Max
Chip
Standby
Hi-Z
Input
Input
High
High
Low
High
High
Input
Input
Input
Input
Low
Input
Hi-Z
During
POS
Hi-Z
Input
Input
High
High
Low
High
High
Input
Input
Input
Input
Low
Input
Hi-Z
During
STR
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
A[31:3]
BE[7:0]
ADS#
BRDY#
NA#
AHOLD
EADS#
BOFF#
HITM#
W/R#
HLOCK#
CACHE#
KEN#/INV
SMIACT#
HD[63:0]
RAS[5:0]/
CS[5:0]#
CAS[7:0]#/
DQM[7:0]
MA[11:0]
MWE# MWEB# VCC(SUS)
SRAS[A,B]#
SCAS[A,B]#
CKE
CKEB
MD[63:0]
CADV#
CADS#
CCS#
COE#
GWE#
BWE#
TIO[7:0]
TWE#
KRQAK /
FRCL#
* 3.3/2.5V indicates the buffer is 3.3V or 2.5V only, depending upon the VCC(CPU) voltage. 3.3/5V indicates that
the output is 3.3V, and input is 3.3V with 5V tolerance. 5V indicates 3.3V input with 5V tolerance.
** A[31:26] are inputs during Reset.
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
Toggling
DRAM
Interface
VCC(SUS)
O
3.3 V
Undef
High
Toggling Toggling Toggling Toggling
VCC(SUS)
VCC
O
O
O
O
O
O
O
I/O
O
O
O
O
O
O
I/O
O
3.3 V
3.3 V
3.3 V
3.3V
3.3V
3.3V
3.3V
3.3/5V
3 .3V
3 .3V
3 .3V
3.3 V
3.3 V
3.3 V
3.3 V
3.3 V
Undef
Undef
High
High
High
Undef
Undef
Hi-Z
High
High
Low
High
High
High
Low
Low
Undef Toggling Toggling Toggling Toggling
Undef Toggling
Low
High
Toggling
High
High
Toggling Toggling
High
Toggling Toggling
High
High
High
High
High
High
Hi-Z
Toggling
Hi-Z
High
Toggling
High
High
Toggling
High
Low
Low
Low
High
Toggling
High
High
Toggling
High
High
Toggling
High
Hi-Z
Toggling
Hi-Z
High
Toggling
High
Low
High
Low
Low
Low
Low
Hi-Z
High
High
Low
High
High
High
Hi-Z
High
Pwrdn
High
Pwrdn
Pwrdn
Low
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
Pwrdn
VCC
VCC
VCC(SUS)
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
L2
Cache
Interface
VCC
I/O
3.3V
Input
Input
Toggling
Input
Input
Pwrdn