參數(shù)資料
型號: MT90221
廠商: Mitel Networks Corporation
英文描述: Quad IMA/UNI PHY Device(四端口 IMA/UNI 物理層設(shè)備(四端口ATM IMA和UNI處理器))
中文描述: 四IMA的/單向物理層設(shè)備(IMA的四端口/單向物理層設(shè)備(四端口自動(dòng)柜員機(jī)IMA的和單向處理器))
文件頁數(shù): 67/116頁
文件大?。?/td> 309K
代理商: MT90221
MT90221
59
7.6
External SRAM Register Description
Tables 60 to 64 describe the
External SRAM
registers.
Address (Hex):
Direct access
Reset Value (Hex):
292
Defines the external SRAM configuration
08
Bit #
Type
Description
7
6
5
R/W
R/W
R/W
R/W
R/W
Write a 1 to reset the receiver. 0 means no action.
Write a 1 to reset the transmitter. 0 means no action.
Reserved, write 0 for normal operation.
Write 00 for normal system operation.
These 3 bits define the size of the external receive memory:
101: 2 banks of 512K x 8 bits
100: 1 bank of 512K x 8 bits
011: 2 banks of 128K x 8 bits
010: 1 bank of 128K x 8 bits
001: 2 banks of 32K x 8 bits
000: 1 bank of 32K x 8 bits
4:3
2:0
Table 60 - SRAM Control Register
Address (Hex):
Synchronized access Set address before the transfer is initiated with the RX External SRAM Control
register
Reset Value (Hex):
00
283
Bit #
Type
Description
7:0
R/W
RX External SRAM Read/Write data register.
Table 61 - RX External SRAM Read/Write Data
Address (Hex):
Synchronized access Set address before the transfer is initiated with the RX External SRAM Control
register
Reset Value (Hex):
00
291
Bit #
Type
Description
7:0
R/W
RX External SRAM Read/Write Address bit 7:0.
Table 62 - RX External SRAM Read/Write Address 0
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參數(shù)描述
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MT90222AG2 制造商:Microsemi Corporation 功能描述:ATM IMA 40MBPS 2.5V 384BGA /BAKE/DRYPACK - Trays
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