pnx1700 NXP Semiconductors, pnx1700 Datasheet - Page 481

• Manufacturer Part Number: pnx1700
• Description: Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
Table 3: Fast general purpose output (FGPO)
PNX17XX_SER_1
Preliminary data sheet
Bit
20:19
18
17:16
15
Symbol
BUF_START /
MSG_STOP
Reserved
REC_START /
MSG_START
Reserved
Acces
s
R/W
R
R/W
R
Value
00
0
00
0
…Continued
Rev. 1 — 17 March 2006
Description
In Record Mode:
In Message Mode:
To ensure software backward compatibility unused or reserved bits
must be written as zeros and ignored upon read.
Selects record/message start output on fgpo_start at the beginning
of a record/message:
To ensure software backward compatibility unused or reserved bits
must be written as zeros and ignored upon read.
Selects the buffer sync output on fgpo_stop at the start of a new
buffer:
00 = a one clock positive pulse concurrently with the first data
sample of each buffer output.
01 = a one clock positive pulse one clock before the first data
sample of each buffer output.
10 = a positive pulse asserted when any buffer is active, negated
while waiting for a buffer sync.
11 = a positive pulse asserted when data from buffer 2 is valid.
Selects message stop output on fgpo_stop at the end of a
message:
00 = a one clock positive pulse concurrently with the last data
sample for each message
01 = a positive pulse asserted when message data is valid.
10 = same as 00 above
11 = same as 01 above
00 = a one clock positive pulse concurrently with the first data
sample of each record/message output.
01 = a one clock positive pulse one clock before the first data
sample of each record/message output.
10 = a positive pulse asserted as long as valid data is output,
negated while waiting for record/message sync event on
fgpo_rec_sync.
11 = same as 00 above.
Chapter 13: FGPO: Fast General Purpose Output
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX17xx Series
13-16