參數(shù)資料
型號(hào): TNETA1560
廠商: Texas Instruments, Inc.
英文描述: ATM Segmentation and Reassembly Device with SBUS Host Interface(ATM 分段和重設(shè)裝置帶SBUS主機(jī)接口)
中文描述: 自動(dòng)柜員機(jī)分段和重組與SBus主機(jī)接口(自動(dòng)柜員機(jī)分段和重設(shè)裝置帶SBU的主機(jī)接口設(shè)備)
文件頁(yè)數(shù): 9/40頁(yè)
文件大小: 804K
代理商: TNETA1560
TNETA1560
ATM SEGMENTATION AND REASSEMBLY DEVICE
WITH SBUS HOST INTERFACE
SDNS010C – JANUARY 1994 – REVISED OCTOBER 1995
9
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements (see Figure 3)
NO.
MIN
MAX
UNIT
1
tsu(SBBG)
tsu(SBACK)
th(SBACK)
Setup time, SBBG low before SBCLK
15
ns
2
Setup time, SBACK2–SBACK0 valid before SBCLK
15
ns
3
Hold time, SBACK2–SBACK0 valid after SBCLK
0
ns
operating characteristics (see Figure 3)
NO.
4
5
6
7
MIN
MAX
UNIT
td(SBBR)
td(SBD)
td(SBRD)
td(SBSIZ)
Delay time, SBCLK
to SBBR
2.5
22
ns
Delay time, SBCLK
to SBD31–SBD0 valid
2.5
22
ns
Delay time, SBCLK
to SBRD
2.5
22
ns
Delay time, SBCLK
to SBSIZ2–SBSIZ0 valid
2.5
22
ns
The values are given for operation with a 25-MHz SBus clock.
3
SBCLK
(input)
SBBR
(output)
SBBG
(input)
SBD31–
SBD0
(output)
SBRD
(output)
SBSIZ2–
SBSIZ0
(output)
SBPA
(input)
SBACK2–
SBACK0
(input)
VA = Virtual address
4
1
5
6
7
2
Word 0
Word 1
Word 2
VA
3
3
3
3
7
7
7
7
7
Word 3
Figure 3. TNETA1560 Write Operation (TNETA1560 as Master in This Burst Operation)
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