STV5348
Table 9. Row 25 Received Page Control Data Format
D0
D1
D2
D3
D4
D5
D6
D7
COLUMN
PU0
PU1
PU2
PU3
HAM
0
0
0
0
PT0
PT1
PT2
PT3
HAM
0
0
0
1
MU0
MU1
MU2
MU3
HAM
0
0
0
2
MT0
MT1
MT2
C4
HAM
0
0
0
3
HU0
HU1
HU2
HU3
HAM
0
0
0
4
HT0
HT1
C5
C6
HAM
0
0
0
5
C7
C8
C9
C10
HAM
0
0
0
6
C11
C12
C13
C14
HAM
0
0
0
7
MAG0
MAG1
MAG2
0
FOUND
0
0
0
8
0
0
0
0
0
PBLF
0
0
9
Page number : - MAG = magazine, PU = page units, PT = page tens.
Page sub-code : - MU = minutes units, MT = minutes tens, HU = hours units, HT = hours tens.
PBLF = page being looked for, FOUND = low for page found, HAM = hamming error in byte, C4-14 = control bits.
) VPS DATA (see Table 10)
t(s VPS data are stored in row 25 chapter 5 as shown
c in Table 10 when VPS enable bit (D4 of R8 regis-
u ter) is set. VPS data bits are decoded and stored
d in a received area with biphase error bit.
ro 8/30/2 data are stored as received (without ham-
P ming decoding) in Row 23 chapter 5 according to
Table 10.
te 8/30 packet and VPS data decoding is the respon-
le sibility of the control software. The decoder simply
o stores transmitted data.
s I2C Bus Register Map (see Table 11)
b Registers R0 to R10 are write only whilst R11A is
O a read/write and R11B is read only.
The automatic succession on a byte by byte basis
is indicated by the arrows in Table 10.
In the normal operating mode TB should be set to
logic level 0.
After power-up the contents of the registers are as
follows: all bits in registers R0 to R11A are cleared
to zero with the exception of bits D0 and D1 in reg-
isters R5 and R6 which are set to logical one.
After power-up all the memory bytes are preset to
hexadecimal value 20H (space) with the exception
of the byte corresponding to row 0 of column 7 of
chapter 0 which is set to the value corresponding
to "alpha white" hexadecimal value 07H.
t(s) - Table 10. PDC Data Storage
c Column
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
u 8/30/2 (Row 23) D
Initial Page
b13 b14 b15 b16 b17 b18 b19 b20 b21 b22 b23 b24 b25
rod VPS (Row 25)
Received Page Information
B11
B12
B13
B14
B15
P Column
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39
te 8/30/2 (Row 23)
Status Display
Obsole VPS (Row 25) B4
B5
11/30