pnx1500 NXP Semiconductors, pnx1500 Datasheet - Page 502

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

Philips Semiconductors
Volume 1 of 1
Table 3: Fast general purpose INput (FGPI)
PNX15XX_SER_3
Product data sheet
Bit
12
11
10
9:8
7:5
4
Symbol
CAPTURE_ENABLE_1
MODE
Reserved
SAMPLE_SIZE
BUF_SYNC /
MSG_STOP
Reserved
Acces
s
R/W
R/W
R
R/W
R/W
R
Value
0
0
0
00
000
0
…Continued
Rev. 3 — 17 March 2006
Description
Enable input capture into buffer 1. This bit, along with bit 13 above,
start and stop FGPI DMA activity. If input capture into only one
buffer is desired, this bit must be used to start/stop DMA.
0 = record/raw capture mode
1 = message capture mode
To ensure software backward compatibility unused or reserved bits
must be written as zeros and ignored upon read.
Encodes size of data samples input on fgpi_data:
00 = 8-bit data samples
01 = 16-bit data samples
10 = 32-bit data samples
11 = same as 10 above
Encodes function of fgpi_stop / fgpi_buf_start pin
Record Mode (fgpi_buf_start):
Message Mode (fgpi_stop):
To ensure software backward compatibility unused or reserved bits
must be written as zeros and ignored upon read.
000 = Switch buffers on rising edge on fgpi_buf_start. Wait for
next rising edge on fgpi_buf_start to start first buffer.
001 = Switch buffers on falling edge on fgpi_buf_start. Wait for
next falling edge on fgpi_buf_start to start first buffer.
010 = Switch buffers on alternating edges on fgpi_buf_start. Wait
for next rising edge on fgpi_buf_start to start first buffer.
011 = Switch buffers on alternating edges on fgpi_buf_start. Wait
for next falling edge on fgpi_buf_start to start first buffer.
100 = No buffer sync. Switch to alternate buffer at current buffer
End-Of-Buffer (EOB). Start first buffer immediately after enable.
101 - 111 = same as 100 above.
000 = Stop message on rising edge of fgpi_stop
001 = Stop message on falling edge of fgpi_stop
010, 100, and 110 = same as 000 above.
011, 101, and 111 = same as 001 above.
Chapter 14: FGPI: Fast General Purpose Interface
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
PNX15xx Series
14-19