byte 1
byte 2
byte 3
byte 4
byte 4
SOH
'P'
'0' - 'F' path upper nibble
'0' - 'F' path lower nibble
ETB
upper nibble bit definitions:
bit 3
bit 2
bit 1
bit 0
0 = normal time format
0 = no broadcast of RTC
0 = use GPS leap seconds
0 =
FIFO
echo off
lower nibble definitions:
bit
bit
bit
bit
1 = long second format <1>
1 = broadcast packet 'o' e a c h second
1 = ignore GPS leap seconds
1 =
FIFO
echo on
3
0
= enable TFP disciplining 1 = disable TFP discipline
2
0
= enable jamsynch
1
= disable jamsynch
1
0
= leap year off
1
= leap year on
0 n o t used (previously enabled diagnostics which are now always off)
<1> TIMED thru TIME4
contain atomic seconds since January 6th 1980. Use only in GPS modes.
4.1.15 PACKET V ' SET DISCIPLINING GAIN
This packet allows the gain and sense o f the disciplining process to be set via the host bus.
Originally this feature was used for Bancomm developmental purposes, bit it would also be
indispensable to anyone attempting to discipline an external oscillator using the TFP. The format
is as follows.
byte
byte
byte
byte
byte
byte
1 S O H
2 ' Q '
3 ' 0 ' - 'F' least significant nibble
4 ' 0 ' - 'F' most significant nibble
5 s e n s e ' 1 ' = positive '0' = negative
6 E T B
4.1.16 PACKET 'S' SET YEAR
This packet allows user to set year in modes 0, 1 and 2.
byte 1
byte 2
byte 3
byte 4
byte 5
SOH
'R'
year tens
year units
ETB
4-10
bc635VME/bc350VX1 Manual
D
a
t
u
m
Inc., Bancomm Div.