參數(shù)資料
型號: TNETA1561
廠商: Texas Instruments, Inc.
英文描述: ATM Segmentation and Reassembly Device with PCI Host Interface(ATM 分段和重設(shè)裝置帶SBUS主機接口)
中文描述: 自動柜員機分段和重組的PCI主機接口(自動柜員機分段和重設(shè)裝置帶SBU的主機接口設(shè)備)
文件頁數(shù): 10/49頁
文件大小: 976K
代理商: TNETA1561
TNETA1561
ATM SEGMENTATION AND REASSEMBLY DEVICE
WITH PCI HOST INTERFACE
SDNS028B – OCTOBER 1994 – REVISED JANUARY 1996
10
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements (see Figure 3)
NO.
MIN
MAX
UNIT
1
tsu(PGNT)
Setup time, PGNT low before PCLK
10
ns
2
tsu(PTRDY)
Setup time, PTRDY low before PCLK
7
ns
3
tsu(PDEVSEL)
Setup time, PDEVSEL low before PCLK
7
ns
4
th(PTRDY)
Hold time, PTRDY low after PCLK
2
ns
5
th(PDEVSEL)
Hold time, PDEVSEL low after PCLK
1
ns
operating characteristics (see Figure 3)
NO.
MIN
MAX
UNIT
6
td(PREQ)
Delay time, PCLK
to PREQ
2
12
ns
7
td(PFRAME)
Delay time, PCLK
to PFRAME
2
11
ns
8
td(PCBE)
Delay time, PCLK
to PCBE3–PCBE0 valid
2
11
ns
9
td(PIRDY)
Delay time, PCLK
to PIRDY
2
11
ns
10
td(PAD)
Delay time, PCLK
to PAD31–PAD0 valid
2
11
ns
PCLK
(input)
PREQ
(output)
PGNT
(input)
PAD31–
PAD0
(output)
PFRAME
(output)
PCBE3–
PCBE0
(output)
PIRDY
(output)
PTRDY
(input)
PDEVSEL
(input)
6
1
10
7
8
9
2
3
Address
Bus Cmd
Data 1
Data 2
Data 4
BE No. S-1
BE No. S-2
BE No. S-3
Data 3
BE No. S-4
4
5
Data Phase
Address Phase
Turn-Around
Cycle
Figure 3. TNETA1561 Write Operation (PCI SAR as Master)
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