GC5318 datasheet(31/45 Pages) TI

31 / 45 page

www.ti.com

4.1.4

Global Control Variables

GC5318

HIGH-DENSITY DIGITAL UPCONVERTER

SLWS187 – JULY 2006

These registers contain global controls for the GC5318. These registers are not paged and are accessed

directly using addresses 32–63 (20–3f hex)

LSB

Bit

Variable Name

Type

Address

Position

Width

Default

Description

page

The page register selects which page addresses 00-1F

(0-31) will access.

slf_tst_ena

(TESTING PURPOSES) Turns on the checksum LFSR.

tst_sel_chan

(TESTING PURPOSES) In each slice, these bits control

which tst_out is sent to the transmit block. (which duc in the

slice)

tst_on

(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.

3-state_10

Reserved outputs for test; must be set to 1 (tristate)

3-state_9

This bit turns on the slice5 tx_sync.

3-state_8

This bit turns on the slice4 tx_sync.

3-state_7

This bit turns on the slice3 tx_sync.

3-state_6

This bit turns on the slice2 tx_sync.

3-state_5

This bit turns on the slice1 tx_sync.

3-state_4

This bit turns on the slice0 tx_syncand tx_sync_out.

3-state_3

This turns on the txout_d outputs.

3-state_2

This turns on the txout_c CLK_TST, IFLAG_TST, and

SYNC_TST outputs.

3-state_1

This turns on the txout_b outputs.

3-state_0

This turns on the txout_a, TX_IFLAG, and TXCLK_OUT

outputs.

tx_oneshot

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'.

imask_comp_pmeter

Interrupt mask bits for the transmit composite power meter

imask_tx_pmeter

Interrupt mask bits for the composite power meter

imask_tx_cic

Interrupt mask bits for overflow detection in the transmit cics

GC5318 Programming

GC5318 Datasheet(PDF) 31 Page - Texas Instruments

GC5318 Datasheet(HTML) 31 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

Datasheet Download

Link URL