Z8622912PSC View Datasheet(PDF) - Zilog
Part Name
Description
MFG CO.
'Z8622912PSC' PDF : 52 Pages View PDF
<
065% .KPG %%& &GEQFGT
ZiLOG
COMMANDS
Serial Port Commands
The majority of the Z86229 commands are common to both
the I2C and SPI modes. In the I2C mode, the commands must
be contained within the specified sequence (Start—Slave
Address—etc.).
Note: In the following Command descriptions, the letter “h” fol-
lowing a command code designates hexadecimal nota-
tion.
Reset
RESET = FBh, FCh, 00h. RESET is a three byte command
sequence in SPI or I2C mode. The RESET command estab-
lishes all the specified default settings in the device, but it
does not reset the serial port itself. This sequence can be en-
tered without RDY being set.
No Operation
NOP = 00h. NOP is a one-byte command for use in SPI or
I2C mode. The NOP command does not affect the status of
the RDY bit in the Serial Status (SS) register and can be ex-
ecuted independent of the RDY status.
Serial Sync Bytes
SSB = FFh,....,FFh,FEh. Serial Sync Bytes are used in SPI
mode only. This command actually consists of a string of
single-byte commands in the form FFh,....FFh,FEh. SPI
mode communications can be synchronized by sending a
synchronizing data string to the part. This string should con-
sist of at least two SSB bytes of FFh, followed by one SSB
byte of FEh. At the end of the FEh byte, the port is ready
for use.
Table 12. Basic Serial Commands
5GTKCN %QOOCPF
4'5'6
012
55$
%QOOCPF %QFG
($J (%J J
J
((J ((J ('J
0QVGU
52+ QT +%
52+ QT +%
52+ OQFG QPN[
Caption/Text Display Mode Commands
CPTX = 10h–1Fh. These caption and text display-mode
commands are one-byte commands that select the Line 21
data stream (caption or text) for display.
Bit CM7 CM6 CM5 CM4 CM3 CM2 CM1 CM0
0
0
0
1 FLD CPTX LANG DONOF
R/W R/W R/W R/W R/W R/W R/W R/W
Figure 12. CPTX–Caption/Text Display
(CPTX = 10h–1Fh)
A data channel can be selected for display with the display
either enabled (DEC ON) or disabled (DEC OFF). All these
commands turn off the active XDS display mode. Table 13
summarizes the device’s caption and text display modes and
the proper command code to activate them.
Table 13. Caption and Display Commands
%26: %QOOCPF
%%
%%
%%
%%
6
6
6
6
%26: %QOOCPF %QFG
&GEQFGT
10 &GEQFGT 1((
J
J
J
J
(J
'J
&J
%J
J
J
J
J
$J
#
J
XDS Display Mode and 16-Second Erase Timer
Commands
XDS DISP = 20h–27h. XDS Display commands are one-
byte commands. These commands control the selection of
XDS display modes and the state of the 16-Second Erase
Timer. The 16-Second Erase Timer is active only for cap-
tion and XDS display modes. The 16-Second Erase Timer
has no affect on Text mode displays.
24'.+/+0#4;
&5
Share Link: 
