參數(shù)資料
型號: KSZ8841-16MQL A6
廠商: Micrel Inc
文件頁數(shù): 94/105頁
文件大小: 0K
描述: IC MAC CTRLR 8/16BIT 128-PQFP
標準包裝: 66
控制器類型: 以太網(wǎng)控制器,MAC
接口: 總線
電源電壓: 3.1 V ~ 3.5 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 128-BFQFP
供應商設備封裝: 128-PQFP(14x20)
包裝: 托盤
配用: 576-1631-ND - BOARD EVALUATION KSZ8841-16MQL
Micrel, Inc.
KSZ8841-16/32 MQL/MVL/MBL
October 2007
89
M9999-102207-1.6
Timing Specifications
Asynchronous Timing without using Address Strobe (ADSN = 0)
Figure 13. Asynchronous Cycle – ADSN = 0
Symbol
Parameter
Min
Typ
Max
Unit
t1
A1-A15, AEN, BExN[3:0] valid to RDN, WRN active
0
ns
A1-A15, AEN, BExN[3:0] hold after RDN inactive
(assume ADSN tied Low)
0
ns
t2
A1-A15, AEN, BExN[3:0] hold after WRN inactive
(assume ADSN tied Low)
1
ns
t3
Read data valid to ARDY rising
0.8
ns
t4
Read data to hold RDN inactive
4
ns
t5
Write data setup to WRN inactive
4
ns
t6
Write data hold after WRN inactive
2
ns
t7
Read active to ARDY Low
8
ns
t8
Write inactive to ARDY Low
8
ns
ARDY low (wait time) in read cycle (Note1)
(It is 0ns to read bank select register and 40ns to
read QMU data register in turbo mode) (Note2)
0
40
ns
t9
ARDY low (wait time) in read cycle (Note1)
(It is 0ns to read bank select register and 80ns to
read QMU data register in normal mode)
0
80
ns
t10
ARDY low (wait time) in write cycle (Note1)
(It is 0ns to write bank select register)
(It is 36ns to write QMU data register)
0
50
ns
Table 16. Asynchronous Cycle (ADSN = 0) Timing Parameters
Notes:
1.
When CPU finished current Read or Write operation, it can do next Read or Write operation even the ARDY is low. During Read
or Write operation if the ADRY is low, the CPU has to keep the RDN/WRN low until the ARDY returns to high.
2.
In order to speed up the ARDY low time to 40 ns, user has to use the turbo software driver which is only supported in the A6
device. Please refer to the “KSZ88xx Programmer's Guide” for detail.
t6
t5
t1
t4
t3
t2
valid
Addr, AEN, BExN
ADSN
Read Data
RDN, WRN
Write Data
t7
ARDY
(Read Cycle)
ARDY
(Write Cycle)
t8
t9
t10
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