GC5318 Datasheet, PDF (31/45 Pages) Texas Instruments – HIGH-DENSITY DIGITAL UPCONVERTER

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GC5318
HIGH-DENSITY DIGITAL UPCONVERTER
SLWS187 – JULY 2006
4.1.4 Global Control Variables
These registers contain global controls for the GC5318. These registers are not paged and are accessed
directly using addresses 32–63 (20–3f hex)
Variable Name
page
slf_tst_ena
tst_sel_chan
LSB
Type Address Position
E
21
0
Bit
Width
16
D
22
15
1
E
22
1
2
tst_on
E
22
0
1
3-state_10
3-state_9
3-state_8
3-state_7
3-state_6
3-state_5
3-state_4
3-state_3
3-state_2
3-state_1
3-state_0
tx_oneshot
E
23
10
1
C
23
9
1
C
23
8
1
C
23
7
1
C
23
6
1
C
23
5
1
C
23
4
1
C
23
3
1
C
23
2
1
C
23
1
1
C
23
0
1
D
24
15
1
imask_comp_pmeter D
29
12
4
imask_tx_pmeter
D
2A
4
12
imask_tx_cic
D
2C
0
12
Default
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
Description
The page register selects which page addresses 00-1F
(0-31) will access.
(TESTING PURPOSES) Turns on the checksum LFSR.
(TESTING PURPOSES) In each slice, these bits control
which tst_out is sent to the transmit block. (which duc in the
slice)
(TESTING PURPOSES) When asserted the testbus is
active; txout_c (17:0), and txout_d (17:0) form the 36-bit test
word output.
The following tristates are active low; 0 turns the output on; 1
tristates it.
Reserved outputs for test; must be set to 1 (tristate)
This bit turns on the slice5 tx_sync.
This bit turns on the slice4 tx_sync.
This bit turns on the slice3 tx_sync.
This bit turns on the slice2 tx_sync.
This bit turns on the slice1 tx_sync.
This bit turns on the slice0 tx_syncand tx_sync_out.
This turns on the txout_d outputs.
This turns on the txout_c CLK_TST, IFLAG_TST, and
SYNC_TST outputs.
This turns on the txout_b outputs.
This turns on the txout_a, TX_IFLAG, and TXCLK_OUT
outputs.
When set, a one-shot pulse is sent to the transmit blocks for
syncing. This option works only if the blocks are programmed
to see the oneshot. To use the one-shot again, it must be
programmed back to a '0' and then back to a '1'.
Interrupt mask bits for the transmit composite power meter
Interrupt mask bits for the composite power meter
Interrupt mask bits for overflow detection in the transmit cics
GC5318 Programming
31