pnx1500 NXP Semiconductors, pnx1500 Datasheet - Page 495

• Manufacturer Part Number: pnx1500
• Description: Pnx15xx Series Connected Media Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Volume 1 of 1
3. Operation
PNX15XX_SER_3
Product data sheet
Figure 5:
record n-1
record n-1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
record n-1
record n-1
fgpi_buf_sync
3
3
3
3
3
3
3
3
fgpi_buf_sync
Buffer Sync Actions
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
2.13 Buffer Synchronization
3.1.1 Setup
fgpi_buf_sync
3.1 Both Operating Modes
7
7
7
7
7
7
7
7
fgpi_buf_sync
8
8
8
8
8
8
8
8
Initialize all registers, except the FGPI_CTL register, first. Then load the FGPI_CTL
register with the CAPTURE_ENABLE_1 and CAPTURE_ENABLE_2 bits set.
record n
record n
record n
9
9
9
9
9
9
9
9
a
a
a
a
a
a
a
a
record n
b
b
b
b
b
b
b
b
c
c
c
c
c
c
c
c
d
d
d
d
d
d
d
d
e
e
e
e
e
e
e
e
Rev. 3 — 17 March 2006
record n+1
record n+1
record n+1
record n+1
f
f
f
f
f
f
f
f
g
g
g
g
g
g
g
g
h
h
h
h
h
h
h
h
i
i
i
i
i
i
i
i
Chapter 14: FGPI: Fast General Purpose Interface
Buffer #1
Buffer #2
Buffer #2
Buffer #2
Buffer #1
Buffer #1
Buffer #1
Buffer #2
FGPI_CTL[3:2] == 00 or 01
fgpi_buf_sync sampled during last record of buffer #1
will allow the record to finish being loaded into buffer #1
FGPI_CTL[3:2] == 10
fgpi_buf_sync sampled before last record of buffer #1
will switch to buffer #2 after storing the last sample in
buffer #1. Subsequent samples will be saved in buffer
#2. Note: the rest of buffer #1 is undefined.
fgpi_buf_sync sampled during last record of buffer #1
will switch to buffer #2 after storing the last sample in
buffer #1. Subsequent samples will be saved in buffer
#2. Note: the rest of buffer #1 is undefined.
FGPI_CTL[3:2] == 00 or 01
fgpi_buf_sync sampled before last record of buffer #1
will allow the record to finish being loaded into buffer#1
but record n will be loaded into buffer #2. Note: the rest
of buffer #1 is undefined.
FGPI_CTL[3:2] == 10
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX15xx Series
14-12