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參數(shù)資料
| 型號： | MK50H27Q25 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 1 CHANNEL(S), 51M bps, SERIAL COMM CONTROLLER, PQCC52 |
| 封裝： | PLASTIC, LCC-52 |
| 文件頁數(shù)： | 26/58頁 |
| 文件大?。?/td> | 621K |
| 代理商： | MK50H27Q25 |
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4.2.5 Transmit Descriptor Ring Pointer (continued)
BIT
NAME
DESCRIPTION
15
0
Reserved, must be written as a zero.
14:12
TLEN
TRANSMIT RING LENGTH is the number of entries in the Transmit
Ring expressed as a power of two.
TLEN
Number of Entries
01
12
24
38
416
532
664
7128
11:08
0
Reserved, must be written as a zero.
07:00/15:00
TDRA
TRANSMIT DESCRIPTOR RING ADDRESS is the base address
(lowest address) of the Transmit Descriptor Ring.
The
Transmit
Descriptor Ring Address must begin on a word boundary.
4.2.6 Status Buffer Address
BIT
NAME
DESCRIPTION
15:08
TWS
TRANSMIT WINDOW SIZE is used to determine the maximum number
of MSUs that can be transmitted without acknowledgement. For com-
pliance with Japanese TTC JT-Q703 this value should typically be 40.
For compliance with CCITT/ITU Q.703 this value should be 127. For
compatibility with the original MK50H27, this field may be programmed
with all zeroes, causing the MK50H27 to use a default value of 127 as
did the MK50H27.
07:00/15:00
SBA
STATUS BUFFER ADDRESS points to the status
buffer into which link status information is placed upon the issuance of
the Status Request primitive by the HOST. The status buffer must be-
gin on a word boundary.
1
5
1
4
1
3
0
7
0
8
0
1
2
0
1
0
2
0
3
0
4
0
5
0
9
0
6
IADR + 44
IADR + 46
SBA<15:00>
SBA<23:16>
0
TWS <15:08>
MK50H27
32/56
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| MK50H27Q33B | 功能描述:射頻無線雜項 SS7 Controller 33MHz RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
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| MK50H28 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTI LOGICAL LINK FRAME RELAY CONTROLLER |
| MK50H28DIP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTI LOGICAL LINK FRAME RELAY CONTROLLER |
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