Intel 8XC196MC User Manual
B-23
SIGNAL DESCRIPTIONS
8XC196MD. Table B-9 lists the same information for the 8XC196MH. Table B-7 defines the
symbols used to represent the pin status. Refer to the DC Characteristics table in the datasheet for
actual specifications for V
symbols used to represent the pin status. Refer to the DC Characteristics table in the datasheet for
actual specifications for V
OL
, V
IL
, V
OH
, and V
IH
.
Table B-7. Definition of Status Symbols
Symbol
Definition
Symbol
Definition
0
Voltage less than or equal to V
OL
, V
IL
MD0
Medium pull-down
1
Voltage greater than or equal to V
OH
, V
IH
MD1
Medium pull-up
HiZ
High impedance
WK0
Weak pull-down
LoZ0
Low impedance; strongly driven low
WK1
Weak pull-up
LoZ1
Low impedance; strongly driven high
ODIO
Open-drain I/O
Table B-8. 8XC196MC and MD Default Signal Conditions
Port Signals
Alternate
Functions
During
RESET# Active
Upon RESET#
Inactive
(Note 14)
Idle
Powerdown
P0.7:0
ACH7:0
HiZ
—
HiZ
HiZ
P1.1:0
ACH9:8
HiZ
—
HiZ
HiZ
P1.2
ACH10/T1CLK
HiZ
—
HiZ
HiZ
P1.3
ACH11/T1DIR
HiZ
—
HiZ
HiZ
P1.4
ACH12
HiZ
—
HiZ
HiZ
P1.5 (Note 15)
ACH13
HiZ
—
HiZ
HiZ
P1.7:6 (Note 15)
—
HiZ
—
HiZ
HiZ
P2.0
EPA0
WK1 (Note 1)
WK1
(Note 12)
(Note 12)
P2.1
EPA1
WK1
WK1
(Note 12)
(Note 12)
P2.3:2
EPA3:2
WK1
WK1
(Note 12)
(Note 12)
P2.6:4
COMP2:0
WK1
WK1; except
P2.5 = LZ
(Note 1)
(Note 12)
(Note 12)
P2.7
COMP3
WK1
WK1
(Note 12)
(Note 12)
P3.7:0
AD7:0
WK1
HiZ
(Note 3)
(Note 3)
P4.7:0
AD15:8
WK1
HiZ
(Note 3)
(Note 3)
P5.0
ADV#/ALE
WK1 (Note 1)
WK1 (Note 4)
(Note 8)
(Note 8)
P5.1
INST
WK1
WK1
(Note 9)
(Note 9)
P5.2
WR#/WRL#
WK1 (Note 1)
WK1
(Note 10)
(Note 10)
P5.3
RD#
WK1 (Note 1)
WK1 (Note 4)
(Note 10)
(Note 10)
P5.4
ONCE#
MD1
LZ (Note 1)
(Note 10)
(Note 10)
P5.5
BHE#/WRH#
WK1
WK1 (Note 4)
(Note 10)
(Note 10)
P5.6
READY
WK1
(Note 5)
(Note 11)
(Note 11)
P5.7
BUSWIDTH
WK1
(Note 6)
(Note 11)
(Note 11)
P6.0
WG1#
WK1
WK1
(Note 13)
(Note 13)
P6.1
WG1
WK1
WK1
(Note 13)
(Note 13)
P6.2
WG2#
WK1
WK1
(Note 13)
(Note 13)