X9241
Table 1. Instruction Set
Instruction Format
Instruction
Read WCR
I3
I2
I1
I0
P1
P0
R1
(8)
Ro
N/A Read the contents of the Wiper Counter
Register pointed to by P –P
Operation
(7)
1
1
1
1
1
0
0
1
1/0
1/0 N/A
1
0
Write WCR
0
0
1
1
1
1
0
0
0
1
0
1
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
N/A N/A Write new value to the Wiper Counter
Register pointed to by P –P
1
0
Read Data
Register
1/0
1/0
1/0
1/0
1/0
1/0
Read the contents of the Register
pointed to by P –P and R –R
1
0
1
0
Write Data
Register
Write new value to the Register
pointed to by P –P and R –R
1
0
1
0
XFR Data Reg-
ister to WCR
Transfer the contents of the Register
pointed to by P –P and R –R
1
0
1
0
to its associated WCR
Transfer the contents of the WCR
pointed to by P –P to the Register
XFR WCR to
Data Register
1
0
1
0
1
0
0
0
1
0
0
1
0
1
0
0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1/0
1
0
pointed to by R –R
1
0
Global XFR Data
Register to WCR
N/A N/A
N/A N/A
Transfer the contents of all four Data
Registers pointed to by R –R to their
1
0
respective WCR
Global XFR WCR
to Data Register
Transfer the contents of all WCRs
to their respective data Registers
pointed to by R –R
1
0
Increment/Decre-
ment Wiper
1/0
1/0
N/A N/A Enable Increment/decrement of the
WCR pointed to by P –P
1
0
3864 PGM T02.1
Notes: (7) 1/0 = data is one or zero
(8) N/A = Not applicable or don't care; that is, a data register is not involved in the operation and need not be addressed (typical)
Figure 7. Acknowledge Response from Receiver
SCL FROM
MASTER
1
8
9
DATA
OUTPUT
FROM
TRANSMITTER
DATA
OUTPUT
FROM
RECEIVER
START
ACKNOWLEDGE
3864 ILL F14
6
XICOR [ XICOR INC. ]
