參數(shù)資料
型號： PCM9211PTR
廠商： TEXAS INSTRUMENTS INC
元件分類： 網(wǎng)絡接口
英文描述： DATACOM, TOKEN RING TRANSCEIVER, PQFP48
封裝： GREEN, PLASTIC, LQFP-48
文件頁數(shù)： 108/121頁
文件大?。?/td> 1219K
代理商： PCM9211PTR
www.ti.com
SBAS495 – JUNE 2010
Register 3Ch–3Dh, PD Buffer (Burst Preamble PD Output Register)
Address: 3Ch, Read-Only
DATA
B7
B6
B5
B4
B3
B2
B1
B0
Reg Name
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
Default Value
N/A
Memo
Address: 3Dh, Read-Only
DATA
B7
B6
B5
B4
B3
B2
B1
B0
Reg Name
PD15
PD14
PD13
PD12
PD11
PD10
PD9
PD8
Default Value
N/A
Memo
PD[15:0]: Burst Preamble PD, Length Code (Number of bits)
PD[15:0] is updated at the time when PC[15:0] is updated. PD[15:0] is never updated when only PC[15:0] is
updated. Register 2Ch/OPCRNW0 or Register 2Dh/OPCRNW1 inform the system that PC[15:0] is updated.
Register 40h, System Reset Control
(Address: 40h, Write and Read)
DATA
B7
B6
B5
B4
B3
B2
B1
B0
Reg Name
MRST
SRST
ADDIS
RXDIS
RSV
TXDIS
XODIS
Default Value
1
0
Memo
MRST: Mode Control Register Reset for All Functions
0: Set default value
1: Normal operation (default)
SRST: System Reset for ADC
0: Reset
1: Normal operation (default)
To return the MRST, SRST bit to '0' is not necessary because the MRST, SRST bit is automatically
set to '1'.
ADDIS: Power Down for ADC
0: Normal operation (default)
1: Power down
SCK must be provided to disable ADC by ADDIS = 1.
RXDIS: Power Down for DIR
0: Normal operation (default)
1: Power down
TXDIS: Power Down for DIT
0: Normal operation (default)
1: Power down
XODIS: Power Down for OSC
0: Normal operation (default)
1: Power down
XODIS is superior to OSCAUTO.
Copyright 2010, Texas Instruments Incorporated
87
Product Folder Link(s): PCM9211
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