Instruction set summary, Ht93lc56 – Rainbow Electronics HT93LC56 User Manual
Page 6
ERASE
ERAL
WRAL
Instruction Set Summary
HT93LC56
Instruction
Comments
Start
bit
Op
Code
Address
Data
ORG=0
X8
ORG=1
X16
ORG=0
X8
ORG=1
X16
READ
Read data
1
10
XA7~A0
XA6~A0
D7~D0
D15~D0
ERASE
Erase data
1
11
XA7~A0
XA6~A0
¾
¾
WRITE
Write data
1
01
XA7~A0
XA6~A0
D7~D0
D15~D0
EWEN
Erase/Write Enable
1
00
11XXXXXXX
11XXXXXX
¾
¾
EWDS
Erase/Write Disable
1
00
00XXXXXXX
00XXXXXX
¾
¾
ERAL
Erase All
1
00
10XXXXXXX
10XXXXXX
¾
¾
WRAL
Write All
1
00
01XXXXXXX
01XXXXXX
D7~D0
D15~D0
Note:
²X² stands for ²don¢t care²
HT93LC56
Rev. 1.20
6
October 26, 2001
C S
S K
D O
H i g h - Z
S t a n d b y
D I
1
( 1 )
t
H Z
t
S V
t
P R
t
C D S
b u s y r e a d y
v e r i f y
1
S t a r t b i t
A N
A N - 1 A N - 2
A 1
A 0
C S
S K
D O
H i g h - Z
S t a n d b y
D I
( 1 )
t
H Z
t
S V
t
P R
t
C D S
b u s y
r e a d y
v e r i f y
1
0
0
0
S t a r t b i t
C S
S K
D O
H i g h - Z
S t a n d b y
D I
1
( 1 )
t
H Z
t
S V
t
P R
t
C D S
b u s y
r e a d y
v e r i f y
0
D X
D 0
0
0
S t a r t b i t