SC26C562 Philips Semiconductors, SC26C562 Datasheet - Page 16

• Manufacturer Part Number: SC26C562
• Description: CMOS dual universal serial communications controller CDUSCC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
AC ELECTRICAL CHARACTERISTICS (Continued)
1998 Sep 04
t
t
t
t
t
t
t
t
t
TAHTAL
TALTAH
TALTRH
WDVTAH
TAHWDI
TALEOL
TAHEOF
EILTAH
TAHEIH
SYMBOL
CMOS dual universal serial communications controller
(CDUSCC)
(OUTPUT)
TxDAKN
MEMRN
(INPUT)
TxRQN
NOTES:
D7–D0
EOPN
EOPN
A
B
WRN
Ignored by the CDUSCC since CEN is not asserted, but it can be used externally to qualify TxDAKN.
Memory read signal; not seen by CDUSCC.
Transmit DMA ACKN high to low time
Transmit DMA ACKN low to high time
Tx DMA ACKN low to Tx DMA REQN high
Write data valid to Tx DMA ACKN high
Tx DMA ACKN high to write data invalid
Tx DMA ACKN low to EOPN output low
Tx DMA ACKN high to EOPN output float
EOPN input low to Tx DMA ACKN high
Tx DMA ACKN high to EOPN input high
PARAMETER
t
TALTAH
A
B
t
WDVTAH
Figure 14. DMA-Transmit Single Address Mode
t
TAHTAL
16
INDUSTRIAL SC26C562
t
TAHWDI
Min
110
40
60
15
40
30
t
Max
100
TALTRH
110
70
t
TALEOL
LIMITS
COMMERCIAL SC26C562
A
B
Min
100
30
40
10
30
25
t
EILTAH
Max
100
80
60
SC26C562
Product specification
t
t
TAHEOF
TAHEIH
SD00248
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns