參數(shù)資料
型號: SC68C562C1
廠商: NXP Semiconductors N.V.
英文描述: CMOS dual universal serial communications controller CDUSCC
中文描述: CMOS雙通用串行通信控制器CDUSCC
文件頁數(shù): 19/26頁
文件大小: 163K
代理商: SC68C562C1
Philips Semiconductors
Product specification
SC68C562
CMOS Dual universal serial communications controller
(CDUSCC)
1998 Sep 04
19
DMA Rx Read Timing — Single Address DMA
LIMITS
SYMBOL
PARAMETER
INDUSTRIAL SC68C562
Min
COMMERCIAL SC68C562
Min
UNIT
Max
140
Max
130
t
RALDDV
t
DTLDTH
t
DALDTL
t
DTLDDF
Receive DMA ACKN low to read data valid
DTCN low to DTCN high
DTACKN low to DTCN low
9
DTCN low to data bus float
ns
ns
ns
ns
50
0
40
0
70
60
t
RALDAL
Rx DMA ACK low to DTACKN low
9
30
1
f
CL
140
1.5
f
CL
40
1
f
CL
130
1.5
f
CL
ns
t
DDVDAL
t
DTLDAH
t
DTLDAZ
t
RRHDAL
t
ROLDAL
t
RALRRH
t
RAHRAL
t
RALROL
t
DTLROH
t
RALRAH
t
RAHDDF
t
RALDDA
t
RAHDDI
t
DTLDDI
t
RALDTL
t
RAHDAH
t
RAHDAZ
t
RAHROH
Read data valid to DTACKN low
9
DTCN low to DTACKN high
DTCN low to DTACKN high impedance
Rx DMA REQN high to DTACKN low
9
Rx DONEN output low to DTACKN low
9
Rx DMA ACKN low to receive DMA REQN high
Receive DMA ACKN high to low time
Rx DMA ACK low to Rx DONEN output low
DTCN low to Rx DONEN output high
Rx DMA ACKN low to Rx DMA ACKN high
Rx DMA ACKN high to data bus float
Rx DMA ACKN low to data bus drivers active
9
Rx DMA ACKN high to data bus invalid
DTCN low to data bus invalid
Rx DMA ACKN low to DTCN low
Rx DMA ACKN high to DTACKN high
Rx DMA ACKN high to DTACKN high impedance
Rx DMA ACKN high to DONEN output high
20
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
80
110
80
110
40
40
40
40
100
100
50
30
100
80
100
70
140
130
60
60
5
5
5
10
5
5
130
140
80
110
70
70
100
60
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