t3
SA25–SA0
REG_A
REG_B
MCEL_A
MCEL_B
MCEH_A
MCEH_B
t2
t1
t5
t4
t6
t7
OE
t8
WAIT_AB
Three-state or Not Valid for Attribute Memory Read Cycles
Read Cycle Data
SD15–SD8
SD7–SD0
DBUFOE
DBUFRDL
DBUFRDH
Figure 55. PC Card Attribute Memory Read Cycle (ÉlanSC400 Microcontroller Only)
Table 43. PC Card Attribute Memory Read Function (ÉlanSC400 Microcontroller Only)
Mode
REG_x MCEH_x MCEL_x
SA0
OE
WE
SD15–SD8
SD7–SD0
Byte Access
L
L
H
H
L
L
L
H
L
L
H
H
Three-state
Three-state
Even byte
Not valid
Word Access
L
L
L
L
L
Indeterminate
Indeterminate
L
L
H
H
Not valid
Not valid
Even byte
Odd-Byte-Only Access
H
Three-state
120
Élan™SC400 and ÉlanSC410 Microcontrollers Data Sheet
AMD [ AMD ]
