參數(shù)資料
型號： PCM9211PT
廠商： TEXAS INSTRUMENTS INC
元件分類： 網(wǎng)絡(luò)接口
英文描述： DATACOM, TOKEN RING TRANSCEIVER, PQFP48
封裝： GREEN, PLASTIC, LQFP-48
文件頁數(shù)： 31/121頁
文件大?。?/td> 1219K
代理商： PCM9211PT
www.ti.com
SBAS495 – JUNE 2010
Table 1 shows the timing requirements to reset the device using the RST pin.
Table 1. Timing Requirements for RST Pin Device Reset
SYMBOL
DESCRIPTION
MIN
TYP
MAX
UNITS
tRSTL
RST pulse width (RST pin = low)
1
s
The condition of each output pins during the device reset is shown in Table 2.
Table 2. Output Pin Condition During Reset
CLASSIFICATION
PIN NAME
AT RST = L(1)
SCKO
L
BCK
L
Main Output Port
LRCK
L
DOUT
L
ERROR/INT0
H
Flag and Status
NPCM/INT1
L
MPIO_A0 through MPIO_A3
Hi-Z
MPIO_B0 through MPIO_B3
Hi-Z
MPIOs and MPOs
MPIO_C0 through MPIO_C3
Hi-Z
MPO0, MPO1
L
MDI/SDA
Hi-Z
Serial I/F
MDO/ADR0
Hi-Z
Oscillation Circuit
XTO
Output
Common Supply for ADC
VCOM
Output
Coax Input
RXIN0, RXIN1
H
(1)
L = low, H = high, Hi-Z = high impedance.
PCM Audio Interface Format
Each of the modules in the PCM9211 (DIR, DIT, ADC, Aux I/Os) supports these four interface formats:
24-bit I2S format
24-bits Left-Justified format
24-bit Right-Justified format
16-bit Right-Justified format
32-bit interfaces are supported for the paths from AUXIN0/1/2 to MainPort/AUXOUT.
All formats are provided twos complement, MSB first. They are selectable through SPI-/I2C-accessible registers.
The specific control registers are:
DIR: RXFMT[2:0]
ADC: ADFMT[1:0]
DIT: TXFMT[1:0]
Copyright 2010, Texas Instruments Incorporated
17
Product Folder Link(s): PCM9211
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